Cross-Core and Robust Covert Channel Based on Macro-Op Fusion

Table 7

Instructions across the 16 byte boundary of the fetcher can be macrofused. r1002479 is the number of micro-ops are delivered to IDQ from MITE. r479 is the number of micro-ops delivered to the IDQ from the MITE.

Test case	Cycles	Instructions	r1002479	r479
NOPS1 = 0, NOPS2 = 12	13, 043, 078, 943	56, 016, 000, 820	13, 013, 118, 488	52, 019, 903, 856
NOPS1 = 2, NOPS2 = 10	13, 052, 102, 429	56, 016, 000, 821	13, 010, 725, 499	52, 016, 153, 156