4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This program and the accompanying materials
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync are licensed and made available under the terms and conditions
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync of the BSD License which accompanies this distribution. The
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync full text of the license may be found at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync// Since this driver will only ever produce one instance of the memory test
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync// protocol, so we do not need to dynamically allocate the PrivateData.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncUINT32 GenericMemoryTestMonoPattern[GENERIC_CACHELINE_SIZE / 4] = {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 0x5a5a5a5a,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 0xa5a5a5a5,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 0x5a5a5a5a,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 0xa5a5a5a5,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 0x5a5a5a5a,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 0xa5a5a5a5,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 0x5a5a5a5a,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 0xa5a5a5a5,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 0x5a5a5a5a,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 0xa5a5a5a5,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 0x5a5a5a5a,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 0xa5a5a5a5,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 0x5a5a5a5a,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 0xa5a5a5a5,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 0x5a5a5a5a,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Compares the contents of two buffers.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This function compares Length bytes of SourceBuffer to Length bytes of DestinationBuffer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If all Length bytes of the two buffers are identical, then 0 is returned. Otherwise, the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync value returned is the first mismatched byte in SourceBuffer subtracted from the first
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mismatched byte in DestinationBuffer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Length = 0, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] DestinationBuffer The pointer to the destination buffer to compare.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] SourceBuffer The pointer to the source buffer to compare.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Length The number of bytes to compare.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return 0 All Length bytes of the two buffers are identical.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval Non-zero The first mismatched byte in SourceBuffer subtracted from the first
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mismatched byte in DestinationBuffer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync while ((--Length != 0) &&
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (*(INT8*)DestinationBuffer == *(INT8*)SourceBuffer)) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (INTN)*(UINT8*)DestinationBuffer - (INTN)*(UINT8*)SourceBuffer;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Construct the system base memory range through GCD service.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Private Point to generic memory test driver's private data.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successful construct the base memory range through GCD service.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_OUT_OF_RESOURCE Could not allocate needed resource from base memory.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval Others Failed to construct base memory range through GCD service.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Base memory will always below 4G
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync gDS->GetMemorySpaceMap (&NumberOfDescriptors, &MemorySpaceMap);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync for (Index = 0; Index < NumberOfDescriptors; Index++) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (MemorySpaceMap[Index].GcdMemoryType == EfiGcdMemoryTypeSystemMemory) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Private->BaseMemorySize += MemorySpaceMap[Index].Length;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Destroy the link list base on the correspond link list type.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Private Point to generic memory test driver's private data.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync NontestedRange = NONTESTED_MEMORY_RANGE_FROM_LINK (Link);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Add the extened memory to whole system memory map.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Private Point to generic memory test driver's private data.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successful add all the extended memory to system memory map.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval Others Failed to add the tested extended memory.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Range->Capabilities &~(EFI_MEMORY_PRESENT | EFI_MEMORY_INITIALIZED | EFI_MEMORY_TESTED | EFI_MEMORY_RUNTIME)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Test a range of the memory directly .
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Private Point to generic memory test driver's private data.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] StartAddress Starting address of the memory range to be tested.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Length Length in bytes of the memory range to be tested.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Capabilities The bit mask of attributes that the memory range supports.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successful test the range of memory.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval Others Failed to test the range of memory.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Perform a dummy memory test, so directly write the pattern to all range
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Verify the memory range
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = VerifyMemory (Private, StartAddress, Length);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Add the tested compatible memory to system memory using GCD service
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Capabilities &~(EFI_MEMORY_PRESENT | EFI_MEMORY_INITIALIZED | EFI_MEMORY_TESTED | EFI_MEMORY_RUNTIME)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Construct the system non-tested memory range through GCD service.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Private Point to generic memory test driver's private data.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successful construct the non-tested memory range through GCD service.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_OUT_OF_RESOURCE Could not allocate needed resource from base memory.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval Others Failed to construct non-tested memory range through GCD service.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Non tested memory range may be span 4G here
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync gDS->GetMemorySpaceMap (&NumberOfDescriptors, &MemorySpaceMap);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync for (Index = 0; Index < NumberOfDescriptors; Index++) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (MemorySpaceMap[Index].GcdMemoryType == EfiGcdMemoryTypeReserved &&
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (MemorySpaceMap[Index].Capabilities & (EFI_MEMORY_PRESENT | EFI_MEMORY_INITIALIZED | EFI_MEMORY_TESTED)) ==
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Light version do not need to process >4G memory range
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Range->Signature = EFI_NONTESTED_MEMORY_RANGE_SIGNATURE;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Range->StartAddress = MemorySpaceMap[Index].BaseAddress;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Range->Capabilities = MemorySpaceMap[Index].Capabilities;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mNonTestedSystemMemory += MemorySpaceMap[Index].Length;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync InsertTailList (&Private->NonTestedMemRanList, &Range->Link);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Write the memory test pattern into a range of physical memory.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Private Point to generic memory test driver's private data.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Start The memory range's start address.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Size The memory range's size.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successful write the test pattern into the non-tested memory.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval Others The test pattern may not really write into the physical memory.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Add 4G memory address check for IA32 platform
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // NOTE: Without page table, there is no way to use memory above 4G.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync CopyMem ((VOID *) (UINTN) Address, Private->MonoPattern, Private->MonoTestSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // bug bug: we may need GCD service to make the code cache and data uncache,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // if GCD do not support it or return fail, then just flush the whole cache.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Private->Cpu->FlushDataCache (Private->Cpu, Start, Size, EfiCpuFlushTypeWriteBackInvalidate);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Verify the range of physical memory which covered by memory test pattern.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This function will also do not return any informatin just cause system reset,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync because the handle error encount fatal error and disable the bad DIMMs.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Private Point to generic memory test driver's private data.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Start The memory range's start address.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Size The memory range's size.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successful verify the range of memory, no errors' location found.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval Others The range of memory have errors contained.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Add 4G memory address check for IA32 platform
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // NOTE: Without page table, there is no way to use memory above 4G.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Use the software memory test to check whether have detected miscompare
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // error here. If there is miscompare error here then check if generic
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // memory test driver can disable the bad DIMM.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Report uncorrectable errors
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ExtendedErrorData = AllocateZeroPool (sizeof (EFI_MEMORY_EXTENDED_ERROR_DATA));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ExtendedErrorData->DataHeader.HeaderSize = (UINT16) sizeof (EFI_STATUS_CODE_DATA);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ExtendedErrorData->DataHeader.Size = (UINT16) (sizeof (EFI_MEMORY_EXTENDED_ERROR_DATA) - sizeof (EFI_STATUS_CODE_DATA));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ExtendedErrorData->Granularity = EFI_MEMORY_ERROR_DEVICE;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ExtendedErrorData->Operation = EFI_MEMORY_OPERATION_READ;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_COMPUTING_UNIT_MEMORY | EFI_CU_MEMORY_EC_UNCORRECTABLE,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (UINT8 *) ExtendedErrorData + sizeof (EFI_STATUS_CODE_DATA),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Initialize the generic memory test.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] This The protocol instance pointer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Level The coverage level of the memory test.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[out] RequireSoftECCInit Indicate if the memory need software ECC init.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS The generic memory test is initialized correctly.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_NO_MEDIA The system had no memory to be tested.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Private = GENERIC_MEMORY_TEST_PRIVATE_FROM_THIS (This);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // This is initialize for default value, but some value may be reset base on
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // platform memory test driver.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Private->MonoPattern = GenericMemoryTestMonoPattern;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Initialize several internal link list
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync InitializeListHead (&Private->NonTestedMemRanList);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Construct base memory range
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // get the cpu arch protocol to support flash cache
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Create the CoverageSpan of the memory test base on the coverage level
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Even the BDS do not need to test any memory, but in some case it
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // still need to init ECC memory.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // This is the first time we construct the non-tested memory range, if no
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // extended memory found, we know the system have not any extended memory
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // need to be test
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // ready to perform the R/W/V memory test
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mCurrentLink = Private->NonTestedMemRanList.ForwardLink;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mCurrentRange = NONTESTED_MEMORY_RANGE_FROM_LINK (mCurrentLink);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Perform the memory test.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] This The protocol instance pointer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[out] TestedMemorySize Return the tested extended memory size.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[out] TotalMemorySize Return the whole system physical memory size.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync The total memory size does not include memory in a slot with a disabled DIMM.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[out] ErrorOut TRUE if the memory error occured.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] IfTestAbort Indicates that the user pressed "ESC" to skip the memory test.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS One block of memory passed the test.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_NOT_FOUND All memory blocks have already been tested.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_DEVICE_ERROR Memory device error occured, and no agent can handle it.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Private = GENERIC_MEMORY_TEST_PRIVATE_FROM_THIS (This);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // In extensive mode the boundary of "mCurrentRange->Length" may will lost
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // some range that is not Private->BdsBlockSize size boundry, so need
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // the software mechanism to confirm all memory location be covered.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (mCurrentAddress < (mCurrentRange->StartAddress + mCurrentRange->Length)) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if ((mCurrentAddress + Private->BdsBlockSize) <= (mCurrentRange->StartAddress + mCurrentRange->Length)) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync BlockBoundary = mCurrentRange->StartAddress + mCurrentRange->Length - mCurrentAddress;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // If TestAbort is true, means user cancel the memory test
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Report status code of every memory range
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync RangeData = AllocateZeroPool (sizeof (EFI_MEMORY_RANGE_EXTENDED_DATA));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync RangeData->DataHeader.HeaderSize = (UINT16) sizeof (EFI_STATUS_CODE_DATA);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync RangeData->DataHeader.Size = (UINT16) (sizeof (EFI_MEMORY_RANGE_EXTENDED_DATA) - sizeof (EFI_STATUS_CODE_DATA));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (UINT8 *) RangeData + sizeof (EFI_STATUS_CODE_DATA),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // The software memory test (R/W/V) perform here. It will detect the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // memory mis-compare error.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync WriteMemory (Private, mCurrentAddress, BlockBoundary);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = VerifyMemory (Private, mCurrentAddress, BlockBoundary);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // If perform here, means there is mis-compare error, and no agent can
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // handle it, so we return to BDS EFI_DEVICE_ERROR.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // If the memory test restart after the platform driver disable dimms,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // the NonTestSystemMemory may be changed, but the base memory size will
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // not changed, so we can get the current total memory size.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *TotalMemorySize = Private->BaseMemorySize + mNonTestedSystemMemory;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Update the current test address pointing to next BDS BLOCK
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Change to next non tested memory range
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (mCurrentLink != &Private->NonTestedMemRanList) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mCurrentRange = NONTESTED_MEMORY_RANGE_FROM_LINK (mCurrentLink);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Here means all the memory test have finished
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *TotalMemorySize = Private->BaseMemorySize + mNonTestedSystemMemory;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Finish the memory test.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] This The protocol instance pointer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Success. All resources used in the memory test are freed.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Private = GENERIC_MEMORY_TEST_PRIVATE_FROM_THIS (This);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Perform Data and Address line test
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Add the non tested memory range to system memory map through GCD service
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // we need to free all the memory allocate
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Provides the capability to test the compatible range used by some special drivers.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] This The protocol instance pointer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] StartAddress The start address of the compatible memory range that
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync must be below 16M.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Length The compatible memory range's length.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS The compatible memory range pass the memory test.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_INVALID_PARAMETER The compatible memory range are not below Low 16M.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Private = GENERIC_MEMORY_TEST_PRIVATE_FROM_THIS (This);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Check if the parameter is below 16MB
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Check the required memory range status; if the required memory range span
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // the different GCD memory descriptor, it may be cause different action.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (Descriptor.GcdMemoryType == EfiGcdMemoryTypeReserved &&
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (Descriptor.Capabilities & (EFI_MEMORY_PRESENT | EFI_MEMORY_INITIALIZED | EFI_MEMORY_TESTED)) ==
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync CurrentLength = Descriptor.BaseAddress + Descriptor.Length - CurrentBase;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (CurrentBase + CurrentLength > StartAddress + Length) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync CurrentLength = StartAddress + Length - CurrentBase;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync CurrentBase = Descriptor.BaseAddress + Descriptor.Length;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Here means the required range already be tested, so just return success.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Perform the address line walking ones test.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Private Point to generic memory test driver's private data.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successful finished walking ones test.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_OUT_OF_RESOURCE Could not get resource in base memory.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_ACCESS_DENIED Code may can not run here because if walking one test
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync failed, system may be already halt.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Light version no data line test, only perform the address line test
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync while (TestAddress < MAX_ADDRESS && TestAddress > 0) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // only test if the address falls in the enabled range
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ExtendedLink = Private->NonTestedMemRanList.BackLink;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync while (ExtendedLink != &Private->NonTestedMemRanList) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ExtendedRange = NONTESTED_MEMORY_RANGE_FROM_LINK (ExtendedLink);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if ((TestAddress >= ExtendedRange->StartAddress) &&
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (TestAddress < (ExtendedRange->StartAddress + ExtendedRange->Length))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *(EFI_PHYSICAL_ADDRESS *) (UINTN) TestAddress = TestAddress;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Private->Cpu->FlushDataCache (Private->Cpu, TestAddress, 1, EfiCpuFlushTypeWriteBackInvalidate);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (*(EFI_PHYSICAL_ADDRESS *) (UINTN) TestAddress != TestAddress) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync// Driver entry here
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncGENERIC_MEMORY_TEST_PRIVATE mGenericMemoryTestPrivate = {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync The generic memory test driver's entry point.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync It initializes private data to default value.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] ImageHandle The firmware allocated handle for the EFI image.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] SystemTable A pointer to the EFI System Table.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS The entry point is executed successfully.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_NOT_FOUND Can't find HandOff Hob in HobList.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval other Some error occurs when executing this entry point.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Use the generic pattern to test compatible memory range
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mGenericMemoryTestPrivate.MonoPattern = GenericMemoryTestMonoPattern;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mGenericMemoryTestPrivate.MonoTestSize = GENERIC_CACHELINE_SIZE;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Get the platform boot mode
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Get the platform boot mode and create the default memory test coverage
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // level and span size for compatible memory test using
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mGenericMemoryTestPrivate.CoverageSpan = SPARSE_SPAN_SIZE;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync case BOOT_WITH_FULL_CONFIGURATION_PLUS_DIAGNOSTICS:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mGenericMemoryTestPrivate.CoverageSpan = GENERIC_CACHELINE_SIZE;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mGenericMemoryTestPrivate.CoverageSpan = QUICK_SPAN_SIZE;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Install the protocol