def __new__(cls, **kwargs):
if Root._the_instance:
fatal("Attempt to allocate multiple instances of Root.")
return None
# first call: allocate the unique instance
#
# If SimObject ever implements __new__, we may want to pass
# kwargs here, but for now this goes straight to
# object.__new__ which prints an ugly warning if you pass it
# args. Seems like a bad design but that's the way it is.
Root._the_instance = SimObject.__new__(cls)
return Root._the_instance
def generateDeviceTree(self, state):
# The CheckerCPU is not a real CPU and shouldn't generate a DTB
# node. This is why we are skipping the BaseCPU implementation
# and we are calling the base SimObject one.
return SimObject.generateDeviceTree(self, state)