Add Smcntrpmf support #1381
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Add Smcntrpmf support #1381
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liweiwei90
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scottj97
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@scottj97 Sorry for taking so long to turnaround, but for some reason, I wasn't receiving any notifications on the comments. The specification can be found here: https://github.com/riscv/riscv-smcntrpmf/releases/download/v1.0_rc2/riscv-smcntrpmf-v1.0_rc2.pdf |
scottj97
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aswaterman
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This tracks whether the privilege / virtual mode was changed by the execution of the current instruction.
If Smcntrpmf is enabled, mcycle / minstret increment only if counting for the privilege level isn't inhibited in mcyclecfg / minstretcfg.
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This adds support for the "Cycle & Instret Privilege Mode Filtering Architecture" extension ( https://github.com/riscv/riscv-smcntrpmf/releases/download/v1.0_rc2/riscv-smcntrpmf-v1.0_rc2.pdf).