#A4# #Ur# #Sr# #Vr# #Pr# #Sp# #Uz# #Sz# #Vz# #guest states# #host states# #unused (U)# #stable (S)# #volatile (V)# #potential volatile (P)# #resident (r)# #preserved (p)# #zero (z)# #discard page# #page out# #page in# #resolve# #discard page if clean# #page out if dirty# #discard page# #discard backing# #discard backing# #addressing exception# #block validity exception# #Guest state change# #Host state change# #Guest reference#