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core-v-verif

Functional verification project for the CORE-V family of RISC-V cores. This project is under active development.

NEWS UPDATES:

2020-10-15: Aldec's Riviera-PRO SystemVerilog simulator is now supported by core-v-verif. Check out the README in cv32/sim/uvmt_cv32 for more information.
2020-09-04: a new (and much better) method of specifying and organizating test-programs and simulations is now merged in. See slide "Test Specification Updates" in the 2020-08-31 CV32E40P project update.
2020-06-12: a new "Board Support Package" for CV32E40P simulations is installed at cv32/bsp. This BSP should be used to compile/assemble your test-programs. The Makefiles for both the CORE testbench and UVM verification environment have been updated to use this BSP.
2020-06-02: The Imperas OVPsim Instruction Set Generator has been integrated into the UVM environment as the Referenece Model for the CV32E40(P). You will need to obtain a license from Imperas to use it.
2020-02-28: The OpenHW Group CV32E40P is now live!
This repository no longer contains a local copy of the RTL. The RTL is cloned from the appropriate core-v-cores repository as needed. The specific branch and hash of the RTL is controlled by a set of variables in cv32/sim/Common.mk.

Getting Started

First, have a look at the OpenHW Group's website to learn a bit more about who we are and what we are doing.

The design and verification documentation for the various CORE-V cores is located in the OpenHW Group's CORE-V documentation repo. Reading the Verification Strategy is strongly recommended.

With CV32E40P

If you want to run a simulation there are two options:

  1. To run the CORE testbench, go to cv32/sim/core and read the README.
  2. To run the CV32E40P UVM environment, go to cv32/sim/uvmt_cv32 and read the README.

CV32E40P coverage data

The most recently published coverage report for the CV32E40P can be found here.

With CVA6

To run CVA6 testbench, go to cva6 directory and read the README.

Directory Structure of this Repo

bin

Various utilities for running tests and performing various verification-related activities in the core-v-verif repository.

ci

Scriptware for user regression tests and an explainer for the Metrics continuous integration flow used by CORE-V-VERIF.

core-v-cores

Empty sub-directory into which the RTL from one or more of the CORE-V-CORES repositories is cloned.

cv32

Verification Environments, testbenches, testcases and simulation Makefiles for the CV32E cores.

cva6

Verification Environments, testbenches, testcases and simulation Makefiles for the CVA6 cores.

doc

Contains a pointer to the CORE-V-DOCS repository.

lib

Common components for the CV32 and CVA6 verification environments.

vendor_lib

Verification components supported by third-parties.

Contributing

We highly appreciate community contributions. You can get a sense of our current needs by reviewing the GitHub projects associated with this repository. Individual work-items within a project are defined as issues with a task label.

To ease our work of reviewing your contributions, please:

  • Review CONTRIBUTING.
  • Split large contributions into smaller commits addressing individual changes or bug fixes. Do not mix unrelated changes into the same commit!
  • Write meaningful commit messages.
  • If asked to modify your changes, do fixup your commits and rebase your branch to maintain a clean history.