Function SetupDataForOSX

rEFIt_UEFI/Platform/DataHubCpu.cpp:431–561

SetupDataForOSX Sets the DataHub data used by OS X

// SetupDataForOSX
/// Sets the DataHub data used by OS X
VOID EFIAPI
SetupDataForOSX(BOOLEAN Hibernate)
{
  EFI_STATUS Status;

  UINT32     DevPathSupportedVal;
  UINT64     FrontSideBus;
  UINT64     CpuSpeed;
  UINT64     TscFrequency;
  UINT64     ARTFrequency;
  UINTN      Revision;
  UINT16     Zero = 0;
  BOOLEAN    isRevLess = (gSettings.REV[0] == 0 &&
                          gSettings.REV[1] == 0 &&
                          gSettings.REV[2] == 0 &&
                          gSettings.REV[3] == 0 &&
                          gSettings.REV[4] == 0 &&
                          gSettings.REV[5] == 0);

  Revision = StrDecimalToUintn(gFirmwareRevision);

  // fool proof
  FrontSideBus = gCPUStructure.FSBFrequency;
  if ((FrontSideBus < (50 * Mega)) || (FrontSideBus > (1000 * Mega))) {
	  DBG("Wrong FrontSideBus=%llu, set to 100MHz\n", FrontSideBus);
    FrontSideBus = 100 * Mega;
  }

  if (gSettings.QEMU) {
    FrontSideBus = gCPUStructure.TSCFrequency;
    switch (gCPUStructure.Model) {
      case CPU_MODEL_DOTHAN:
      case CPU_MODEL_YONAH:
      case CPU_MODEL_MEROM:
      case CPU_MODEL_PENRYN:
        FrontSideBus = DivU64x32(FrontSideBus, 4);
        break;
      default:
        break;
    }
	  DBG("Using QEMU FrontSideBus=%llull\n", FrontSideBus);
  }

  // Save values into gSettings for the genconfig aim
  gSettings.BusSpeed   = (UINT32)DivU64x32(FrontSideBus, kilo);

  CpuSpeed = gCPUStructure.CPUFrequency;
  gSettings.CpuFreqMHz = (UINT32)DivU64x32(CpuSpeed,     Mega);

  // Locate DataHub Protocol
  Status = gBS->LocateProtocol(&gEfiDataHubProtocolGuid, NULL, (VOID**)&gDataHub);
  if (!EFI_ERROR(Status)) {
    XStringW ProductName;
    ProductName.takeValueFrom(gSettings.ProductName);

    XStringW SerialNumber;
    SerialNumber.takeValueFrom(gSettings.SerialNr);