Dear All, According to the documentation, there are existed two-level MOESI protocol and three-level MESI protocol in Gem5 repository. However both of them are either only two-level or single clusivity. Now I need to configure a private-L1, strictly inclusive private-L2 and strictly exclusive shared-L3 cache hierarchy in Ruby. I want to edit the existed MOESI/MESI protocol but I cannot understand which code lines are dedicated for clusivity in these existed Ruby-based implementation? For CHI, there are parameter for clusivity but for MOESI/MESI, documents didn't tell. What if I want to add a datapath which directly connect LSQ to L3 cache, what should I do?  I think I add to add a sequencer between CPU and L3 cache controller. And can anyone give any ideas? Thanks sincerely in advance.