B.2.20 H > N or H = 0 at Non-secure EL1 and EL0, including value read from PMCR_EL0.N

The processor implements:
  • HPMN[4:0], and in Non-secure EL1 and EL0:
    • If H > N then M = N.
    • If H = 0 then M = 0.
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