ACPI_MEM_SPACE_CONTEXT
ACPI_MEM_SPACE_CONTEXT *LocalRegionContext;
LocalRegionContext = (ACPI_MEM_SPACE_CONTEXT *) *RegionContext;
LocalRegionContext = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_MEM_SPACE_CONTEXT));
ACPI_MEM_SPACE_CONTEXT *MemInfo = RegionContext;