For a multilevel exclusive cache (a block can only reside in one of the L1 and L2 caches), configuration, describe the procedure of handling an L1 write-miss, considering the component involved and the possibility of replacing a dirty block.

Recall that we have two write policies and write allocation policies, and their combinations can be implemented either in L1 or L2 cache.

L1 a. Write through, non-write allocate b. Write through, write allocate L2 Write back, write allocate Write back, write allocate