Exemplo n.º 1
0
/**
  This is the entrypoint of PEIM

  @param  FileHandle  Handle of the file being invoked.
  @param  PeiServices Describes the list of possible PEI Services.

  @retval EFI_SUCCESS if it completed successfully.
**/
EFI_STATUS
EFIAPI
CbPeiEntryPoint (
  IN       EFI_PEI_FILE_HANDLE  FileHandle,
  IN CONST EFI_PEI_SERVICES     **PeiServices
  )
{
  EFI_STATUS           Status;
  UINT64               LowMemorySize;
  UINT64               PeiMemSize = SIZE_64MB;   // 64 MB
  EFI_PHYSICAL_ADDRESS PeiMemBase = 0;
  UINT32               RegEax;
  UINT8                PhysicalAddressBits;
  VOID*                pCbHeader;
  VOID*                pAcpiTable;
  UINT32               AcpiTableSize;
  VOID*                pSmbiosTable;
  UINT32               SmbiosTableSize;
  SYSTEM_TABLE_INFO*   pSystemTableInfo;
  FRAME_BUFFER_INFO    FbInfo;
  FRAME_BUFFER_INFO*   pFbInfo;
  ACPI_BOARD_INFO*     pAcpiBoardInfo;
  UINTN                PmCtrlRegBase, PmTimerRegBase, ResetRegAddress, ResetValue;
  UINTN                PmEvtBase;
  UINTN                PmGpeEnBase;
  CB_MEM_INFO          CbMemInfo;

  //
  // Report lower 640KB of RAM. Attribute EFI_RESOURCE_ATTRIBUTE_TESTED  
  // is intentionally omitted to prevent erasing of the coreboot header  
  // record before it is processed by CbParseMemoryInfo.
  //
  BuildResourceDescriptorHob (
    EFI_RESOURCE_SYSTEM_MEMORY,
    (
    EFI_RESOURCE_ATTRIBUTE_PRESENT |
    EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
    EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
    EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
    EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
    EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
    ),
    // Lower 640KB, except for first 4KB where the lower coreboot pointer ("LBIO") resides
    (EFI_PHYSICAL_ADDRESS)(0 + 0x1000),
    (UINT64)(0xA0000 - 0x1000)
    );


  BuildResourceDescriptorHob (
    EFI_RESOURCE_MEMORY_RESERVED,
    (
    EFI_RESOURCE_ATTRIBUTE_PRESENT |
    EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
    EFI_RESOURCE_ATTRIBUTE_TESTED |
    EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
    EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
    EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
    EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
    ),
    (EFI_PHYSICAL_ADDRESS)(0xA0000),
    (UINT64)(0x60000)
    );

  ZeroMem (&CbMemInfo, sizeof(CbMemInfo));
  Status = CbParseMemoryInfo (CbMemInfoCallback, (VOID *)&CbMemInfo);
  if (EFI_ERROR(Status)) {
    return Status;
  }

  LowMemorySize = CbMemInfo.UsableLowMemTop;
  DEBUG ((EFI_D_INFO, "Low memory 0x%lx\n", LowMemorySize));
  DEBUG ((EFI_D_INFO, "SystemLowMemTop 0x%x\n", CbMemInfo.SystemLowMemTop));

  //
  // Should be 64k aligned
  //
  PeiMemBase = (LowMemorySize - PeiMemSize) & (~(BASE_64KB - 1));

  DEBUG((EFI_D_ERROR, "PeiMemBase: 0x%lx.\n", PeiMemBase));
  DEBUG((EFI_D_ERROR, "PeiMemSize: 0x%lx.\n", PeiMemSize));

  Status = PeiServicesInstallPeiMemory (
         PeiMemBase,
         PeiMemSize
         );
  ASSERT_EFI_ERROR (Status);

  //
  // Set cache on the physical memory
  //
  MtrrSetMemoryAttribute (BASE_1MB, LowMemorySize - BASE_1MB, CacheWriteBack);
  MtrrSetMemoryAttribute (0, 0xA0000, CacheWriteBack);

  //
  // Create Memory Type Information HOB
  //
  BuildGuidDataHob (
    &gEfiMemoryTypeInformationGuid,
    mDefaultMemoryTypeInformation,
    sizeof(mDefaultMemoryTypeInformation)
    );

  //
  // Create Fv hob
  //
  CbPeiReportRemainedFvs ();

  BuildMemoryAllocationHob (
    PcdGet32 (PcdPayloadFdMemBase),
    PcdGet32 (PcdPayloadFdMemSize),
    EfiBootServicesData
    );

  //
  // Build CPU memory space and IO space hob
  //
  AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL);
  if (RegEax >= 0x80000008) {
    AsmCpuid (0x80000008, &RegEax, NULL, NULL, NULL);
    PhysicalAddressBits = (UINT8) RegEax;
  } else {
    PhysicalAddressBits  = 36;
  }
  //
  // Create a CPU hand-off information
  //
  BuildCpuHob (PhysicalAddressBits, 16);

  //
  // Report Local APIC range
  //
  BuildMemoryMappedIoRangeHob (0xFEC80000, SIZE_512KB);

  //
  // Boot mode
  //
  Status = PeiServicesSetBootMode (BOOT_WITH_FULL_CONFIGURATION);
  ASSERT_EFI_ERROR (Status);

  Status = PeiServicesInstallPpi (mPpiBootMode);
  ASSERT_EFI_ERROR (Status);

   //
  // Set pcd to save the upper coreboot header in case the dxecore will
  // erase 0~4k memory
  //
  pCbHeader = NULL;
  if ((CbParseGetCbHeader (1, &pCbHeader) == RETURN_SUCCESS)
    && ((UINTN)pCbHeader > BASE_4KB)) {
    DEBUG((EFI_D_ERROR, "Actual Coreboot header: %p.\n", pCbHeader));
    Status = PcdSet32S (PcdCbHeaderPointer, (UINT32)(UINTN)pCbHeader);
    ASSERT_EFI_ERROR (Status);
  }

  //
  // Create guid hob for system tables like acpi table and smbios table
  //
  pAcpiTable = NULL;
  AcpiTableSize = 0;
  pSmbiosTable = NULL;
  SmbiosTableSize = 0;
  Status = CbParseAcpiTable (&pAcpiTable, &AcpiTableSize);
  if (EFI_ERROR (Status)) {
    // ACPI table is oblidgible
    DEBUG ((EFI_D_ERROR, "Failed to find the required acpi table\n"));
    ASSERT (FALSE);
  }
  CbParseSmbiosTable (&pSmbiosTable, &SmbiosTableSize);

  pSystemTableInfo = NULL;
  pSystemTableInfo = BuildGuidHob (&gUefiSystemTableInfoGuid, sizeof (SYSTEM_TABLE_INFO));
  ASSERT (pSystemTableInfo != NULL);
  pSystemTableInfo->AcpiTableBase = (UINT64) (UINTN)pAcpiTable;
  pSystemTableInfo->AcpiTableSize = AcpiTableSize;
  pSystemTableInfo->SmbiosTableBase = (UINT64) (UINTN)pSmbiosTable;
  pSystemTableInfo->SmbiosTableSize = SmbiosTableSize;
  DEBUG ((EFI_D_ERROR, "Detected Acpi Table at 0x%lx, length 0x%x\n", pSystemTableInfo->AcpiTableBase, pSystemTableInfo->AcpiTableSize));
  DEBUG ((EFI_D_ERROR, "Detected Smbios Table at 0x%lx, length 0x%x\n", pSystemTableInfo->SmbiosTableBase, pSystemTableInfo->SmbiosTableSize));
  DEBUG ((EFI_D_ERROR, "Create system table info guid hob\n"));

  //
  // Create guid hob for acpi board information
  //
  Status = CbParseFadtInfo (&PmCtrlRegBase, &PmTimerRegBase, &ResetRegAddress, &ResetValue, &PmEvtBase, &PmGpeEnBase);
  ASSERT_EFI_ERROR (Status);
  pAcpiBoardInfo = NULL;
  pAcpiBoardInfo = BuildGuidHob (&gUefiAcpiBoardInfoGuid, sizeof (ACPI_BOARD_INFO));
  ASSERT (pAcpiBoardInfo != NULL);
  pAcpiBoardInfo->PmCtrlRegBase = (UINT64)PmCtrlRegBase;
  pAcpiBoardInfo->PmTimerRegBase = (UINT64)PmTimerRegBase;
  pAcpiBoardInfo->ResetRegAddress = (UINT64)ResetRegAddress;
  pAcpiBoardInfo->ResetValue = (UINT8)ResetValue;
  pAcpiBoardInfo->PmEvtBase = (UINT64)PmEvtBase;
  pAcpiBoardInfo->PmGpeEnBase = (UINT64)PmGpeEnBase;
  DEBUG ((EFI_D_ERROR, "Create acpi board info guid hob\n"));

  //
  // Create guid hob for frame buffer information
  //
  ZeroMem (&FbInfo, sizeof (FRAME_BUFFER_INFO));
  Status = CbParseFbInfo (&FbInfo);
  if (!EFI_ERROR (Status)) {
    pFbInfo = BuildGuidHob (&gUefiFrameBufferInfoGuid, sizeof (FRAME_BUFFER_INFO));
    ASSERT (pSystemTableInfo != NULL);
    CopyMem (pFbInfo, &FbInfo, sizeof (FRAME_BUFFER_INFO));
    DEBUG ((EFI_D_ERROR, "Create frame buffer info guid hob\n"));
  }

  //
  // Parse platform specific information from coreboot. 
  //
  Status = CbParsePlatformInfo ();
  if (EFI_ERROR (Status)) {
    DEBUG ((EFI_D_ERROR, "Error when parsing platform info, Status = %r\n", Status));
    return Status;
  }

  return EFI_SUCCESS;
}
Exemplo n.º 2
0
/**
  This is the entrypoint of PEIM

  @param  FileHandle  Handle of the file being invoked.
  @param  PeiServices Describes the list of possible PEI Services.

  @retval EFI_SUCCESS if it completed successfully.
**/
EFI_STATUS
EFIAPI
CbPeiEntryPoint (
  IN       EFI_PEI_FILE_HANDLE  FileHandle,
  IN CONST EFI_PEI_SERVICES     **PeiServices
  )
{
  EFI_STATUS Status;
  UINT64 LowMemorySize, HighMemorySize;
  UINT64 PeiMemSize = SIZE_64MB;   // 64 MB
  EFI_PHYSICAL_ADDRESS PeiMemBase = 0;
  UINT32               RegEax;
  UINT8                PhysicalAddressBits;
  VOID*                pCbHeader;
  VOID*                pAcpiTable;
  UINT32               AcpiTableSize;
  VOID*                pSmbiosTable;
  UINT32               SmbiosTableSize;
  SYSTEM_TABLE_INFO*   pSystemTableInfo;
  FRAME_BUFFER_INFO    FbInfo;
  FRAME_BUFFER_INFO*   pFbInfo;
  ACPI_BOARD_INFO*     pAcpiBoardInfo;
  UINTN                PmCtrlRegBase, PmTimerRegBase, ResetRegAddress, ResetValue;

  LowMemorySize = 0;
  HighMemorySize = 0;

  Status = CbParseMemoryInfo (&LowMemorySize, &HighMemorySize);
  if (EFI_ERROR(Status))
    return Status;

  DEBUG((EFI_D_ERROR, "LowMemorySize: 0x%lx.\n", LowMemorySize));
  DEBUG((EFI_D_ERROR, "HighMemorySize: 0x%lx.\n", HighMemorySize));

  ASSERT (LowMemorySize > 0);

  BuildResourceDescriptorHob (
    EFI_RESOURCE_SYSTEM_MEMORY,
    (
    EFI_RESOURCE_ATTRIBUTE_PRESENT |
    EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
    EFI_RESOURCE_ATTRIBUTE_TESTED |
    EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
    EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
    EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
    EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
    ),
    (EFI_PHYSICAL_ADDRESS)(0),
    (UINT64)(0xA0000)
    );


  BuildResourceDescriptorHob (
    EFI_RESOURCE_MEMORY_RESERVED,
    (
    EFI_RESOURCE_ATTRIBUTE_PRESENT |
    EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
    EFI_RESOURCE_ATTRIBUTE_TESTED |
    EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
    EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
    EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
    EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
    ),
    (EFI_PHYSICAL_ADDRESS)(0xA0000),
    (UINT64)(0x60000)
    );

   BuildResourceDescriptorHob (
    EFI_RESOURCE_SYSTEM_MEMORY,
    (
       EFI_RESOURCE_ATTRIBUTE_PRESENT |
       EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
       EFI_RESOURCE_ATTRIBUTE_TESTED |
       EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
       EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
       EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
       EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
    ),
    (EFI_PHYSICAL_ADDRESS)(0x100000),
    (UINT64) (LowMemorySize - 0x100000)
    );

  if (HighMemorySize > 0) {
    BuildResourceDescriptorHob (
    EFI_RESOURCE_SYSTEM_MEMORY,
    (
       EFI_RESOURCE_ATTRIBUTE_PRESENT |
       EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
       EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
       EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
       EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
       EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
    ),
    (EFI_PHYSICAL_ADDRESS)(0x100000000ULL),
    HighMemorySize
    );
  }

  //
  // Should be 64k aligned
  //
  PeiMemBase = (LowMemorySize - PeiMemSize) & (~(BASE_64KB - 1));

  DEBUG((EFI_D_ERROR, "PeiMemBase: 0x%lx.\n", PeiMemBase));
  DEBUG((EFI_D_ERROR, "PeiMemSize: 0x%lx.\n", PeiMemSize));

  Status = PeiServicesInstallPeiMemory (
         PeiMemBase,
         PeiMemSize
         );
  ASSERT_EFI_ERROR (Status);

  //
  // Set cache on the physical memory
  //
  MtrrSetMemoryAttribute (BASE_1MB, LowMemorySize - BASE_1MB, CacheWriteBack);
  MtrrSetMemoryAttribute (0, 0xA0000, CacheWriteBack);

  //
  // Create Memory Type Information HOB
  //
  BuildGuidDataHob (
    &gEfiMemoryTypeInformationGuid,
    mDefaultMemoryTypeInformation,
    sizeof(mDefaultMemoryTypeInformation)
    );

  //
  // Create Fv hob
  //
  CbPeiReportRemainedFvs ();

  BuildMemoryAllocationHob (
    PcdGet32 (PcdPayloadFdMemBase),
    PcdGet32 (PcdPayloadFdMemSize),
    EfiBootServicesData
    );

  //
  // Build CPU memory space and IO space hob
  //
  AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL);
  if (RegEax >= 0x80000008) {
    AsmCpuid (0x80000008, &RegEax, NULL, NULL, NULL);
    PhysicalAddressBits = (UINT8) RegEax;
  } else {
    PhysicalAddressBits  = 36;
  }
  //
  // Create a CPU hand-off information
  //
  BuildCpuHob (PhysicalAddressBits, 16);

  //
  // Report Local APIC range
  //
  BuildMemoryMappedIoRangeHob (0xFEC80000, SIZE_512KB);

  //
  // Boot mode
  //
  Status = PeiServicesSetBootMode (BOOT_WITH_FULL_CONFIGURATION);
  ASSERT_EFI_ERROR (Status);

  Status = PeiServicesInstallPpi (mPpiBootMode);
  ASSERT_EFI_ERROR (Status);

   //
  // Set pcd to save the upper coreboot header in case the dxecore will
  // erase 0~4k memory
  //
  pCbHeader = NULL;
  if ((CbParseGetCbHeader (1, &pCbHeader) == RETURN_SUCCESS)
    && ((UINTN)pCbHeader > BASE_4KB)) {
    DEBUG((EFI_D_ERROR, "Actual Coreboot header: %p.\n", pCbHeader));
    PcdSet32 (PcdCbHeaderPointer, (UINT32)(UINTN)pCbHeader);
  }

  //
  // Create guid hob for system tables like acpi table and smbios table
  //
  pAcpiTable = NULL;
  AcpiTableSize = 0;
  pSmbiosTable = NULL;
  SmbiosTableSize = 0;
  Status = CbParseAcpiTable (&pAcpiTable, &AcpiTableSize);
  if (EFI_ERROR (Status)) {
    // ACPI table is oblidgible
    DEBUG ((EFI_D_ERROR, "Failed to find the required acpi table\n"));
    ASSERT (FALSE);
  }
  CbParseSmbiosTable (&pSmbiosTable, &SmbiosTableSize);

  pSystemTableInfo = NULL;
  pSystemTableInfo = BuildGuidHob (&gUefiSystemTableInfoGuid, sizeof (SYSTEM_TABLE_INFO));
  ASSERT (pSystemTableInfo != NULL);
  pSystemTableInfo->AcpiTableBase = (UINT64) (UINTN)pAcpiTable;
  pSystemTableInfo->AcpiTableSize = AcpiTableSize;
  pSystemTableInfo->SmbiosTableBase = (UINT64) (UINTN)pSmbiosTable;
  pSystemTableInfo->SmbiosTableSize = SmbiosTableSize;
  DEBUG ((EFI_D_ERROR, "Detected Acpi Table at 0x%lx, length 0x%x\n", pSystemTableInfo->AcpiTableBase, pSystemTableInfo->AcpiTableSize));
  DEBUG ((EFI_D_ERROR, "Detected Smbios Table at 0x%lx, length 0x%x\n", pSystemTableInfo->SmbiosTableBase, pSystemTableInfo->SmbiosTableSize));
  DEBUG ((EFI_D_ERROR, "Create system table info guid hob\n"));

  //
  // Create guid hob for acpi board information
  //
  Status = CbParseFadtInfo (&PmCtrlRegBase, &PmTimerRegBase, &ResetRegAddress, &ResetValue);
  ASSERT_EFI_ERROR (Status);
  pAcpiBoardInfo = NULL;
  pAcpiBoardInfo = BuildGuidHob (&gUefiAcpiBoardInfoGuid, sizeof (ACPI_BOARD_INFO));
  ASSERT (pAcpiBoardInfo != NULL);
  pAcpiBoardInfo->PmCtrlRegBase = (UINT64)PmCtrlRegBase;
  pAcpiBoardInfo->PmTimerRegBase = (UINT64)PmTimerRegBase;
  pAcpiBoardInfo->ResetRegAddress = (UINT64)ResetRegAddress;
  pAcpiBoardInfo->ResetValue = (UINT8)ResetValue;
  DEBUG ((EFI_D_ERROR, "Create acpi board info guid hob\n"));

  //
  // Create guid hob for frame buffer information
  //
  ZeroMem (&FbInfo, sizeof (FRAME_BUFFER_INFO));
  Status = CbParseFbInfo (&FbInfo);
  if (!EFI_ERROR (Status)) {
    pFbInfo = BuildGuidHob (&gUefiFrameBufferInfoGuid, sizeof (FRAME_BUFFER_INFO));
    ASSERT (pSystemTableInfo != NULL);
    CopyMem (pFbInfo, &FbInfo, sizeof (FRAME_BUFFER_INFO));
    DEBUG ((EFI_D_ERROR, "Create frame buffer info guid hob\n"));
  }

  //
  // Mask off all legacy 8259 interrupt sources
  //
  IoWrite8 (LEGACY_8259_MASK_REGISTER_MASTER, 0xFF);
  IoWrite8 (LEGACY_8259_MASK_REGISTER_SLAVE,  0xFF);

  return EFI_SUCCESS;
}