ACPI_HI_RSDP_WINDOW_BASE
rsdp = scan_mem_for_rsdp((u8 *) ACPI_HI_RSDP_WINDOW_BASE,
ACPI_HI_RSDP_WINDOW_BASE,
ACPI_HI_RSDP_WINDOW_BASE,
(ACPI_HI_RSDP_WINDOW_BASE +
rsdp_base = ACPI_HI_RSDP_WINDOW_BASE;