ACPI_HI_RSDP_WINDOW_BASE
physaddr = ACPI_HI_RSDP_WINDOW_BASE;
(ACPI_PHYSICAL_ADDRESS) ACPI_HI_RSDP_WINDOW_BASE,
ACPI_HI_RSDP_WINDOW_BASE, ACPI_HI_RSDP_WINDOW_SIZE));
(ACPI_HI_RSDP_WINDOW_BASE + ACPI_PTR_DIFF (MemRover, TablePtr));
paddr = ACPI_HI_RSDP_WINDOW_BASE;