ACPI_MCFG0_OFFSET
{ACPI_DMT_UINT64, ACPI_MCFG0_OFFSET (Address), "Base Address", 0},
{ACPI_DMT_UINT16, ACPI_MCFG0_OFFSET (PciSegment), "Segment Group Number", 0},
{ACPI_DMT_UINT8, ACPI_MCFG0_OFFSET (StartBusNumber), "Start Bus Number", 0},
{ACPI_DMT_UINT8, ACPI_MCFG0_OFFSET (EndBusNumber), "End Bus Number", 0},
{ACPI_DMT_UINT32, ACPI_MCFG0_OFFSET (Reserved), "Reserved", 0},