Generic Timer Freq. = 100Mhz (guessed). periodic context switching interrupt demo: interval = 1sec
1. + monitor_secure.S, monitor_imp_secure.c
2. Hyp mode stack initialized through a separate secure exception vector - hyp_stacklimit
3. Clearly set secure mode stack in boot.S - sec_stacklimit
4. monitor.S cleanup with unused data words
5. model.lds.S cleanup with unnecessary addresses. MON_OFFSET=0xF0000000, customizable
6. removal of __mon_install_hyp from monitor.S
Manual merge of 57263912b388414ea23b5ac0180eef3aeaa73496 and 6922cbfcde7adcfaaa908ee7c2a97f27410a8198 (Fix to Hyp SP)
hyp mode sp: fix to corruption before switching to the first guest for the first time due to unnecessary stack save of sp/lr at hyp mode trap entrance
Merge branch 'proto2' of https://github.com/Wonseok/khypervisor into proto2