memory. All the memory that can't be mapped directly will be treated
as high memory.
+config STUB_CODE
+ hex
+ default 0xbfffe000
+
+config STUB_DATA
+ hex
+ default 0xbffff000
+
+config STUB_START
+ hex
+ default STUB_CODE
+
config ARCH_HAS_SC_SIGNALS
bool
default y