c

vexiiriscv.memory

PmpStorageParameter

case class PmpStorageParameter(slots: Int) extends Product with Serializable

Reading the RISC-V spec to figure out all the flags/details of the PMP is just too tricky. A good way to figure things out is to loook at spike (software implementation) : - https://github.com/riscv-software-src/riscv-isa-sim/blob/2c67071743d4b55719cee22fdb319df2a0756db7/riscv/mmu.cc#L348 - https://github.com/riscv-software-src/riscv-isa-sim/blob/2c67071743d4b55719cee22fdb319df2a0756db7/riscv/csrs.cc#L183 - https://github.com/riscv-software-src/riscv-isa-sim/blob/2c67071743d4b55719cee22fdb319df2a0756db7/riscv/mmu.cc#L348

In particular, one tricky thing with the PMP is how the PMPADDRx LSB bits are handled in regard of the granularity. Their value change depending the PMPCFGx XD

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  1. PmpStorageParameter
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Instance Constructors

  1. new PmpStorageParameter(slots: Int)

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  1. final def !=(arg0: Any): Boolean
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  11. final def notifyAll(): Unit
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  12. val slots: Int
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