## Background

This is level 3 of 5 and continues the work of the earlier levels. The new files for this level are in `workspace/t3/`. The records from the start are in `workspace/t1/`, and the earlier results are in `workspace/t1/results/` to `workspace/t2/results/`.

## Task

Subject: minstret backport for B0

Hi,

thanks for the counter results. For B0 we will stay on 38c0709 and carry patches, so I need the upstream minstret fixes ported onto our copy as patch files our vendoring flow applies, and evidence I can attach to the change request: that what you found on A0 is gone in our configuration and that the rest of the core behaves as before. DV infrastructure has dropped their compliance checkouts and further ISS builds into Downloads/, and the formal group left their Sail and riscv-formal checkouts there too.

Patches, a results table and the commit message for the change, all in workspace/t3/results/.

Ines

## Input

- `workspace/t1/`: the records supplied with the work (`Downloads/`, `ibex/`, `opentitan/`, `soc/`).
- `workspace/t2/`: the files that came with level t2 (`Downloads/`, `ibex-georgerennie/`, `soc/`).
- `workspace/t3/`: the files that came with level t3 (`Downloads/`, `soc/`).
- `workspace/t1/results/`: the results of level t1.
- `workspace/t2/results/`: the results of level t2.

## Output

- `workspace/t3/results/patches`
- `workspace/t3/results/regression.csv`
- `workspace/t3/results/commit-message.txt`