riscv_zisslpcfi

Draft Extension: Zisslpcfi

• Branch: riscv-zisslpcfi
• Tracking PR: #92 (view Pull Request and Diff)
• Mailing List:
  • REVIEW ONLY v1 (2022-11-29)
  • Version based on the updated specification is not submitted yet.

Feature Description

This patchset implements Zisslpcfi extension, which is a control flow integrity extension which implements shadow stack and landing pads.

It also adds stub Zimop extension as a dependency from Zisslpcfi.

This is based on: https://github.com/riscv/riscv-cfi/commit/c6a8311dd86fdf5dac66800d9036e3ed922a54c4

Because CSR addresses are not determined, this branch comes with a instantiation script (instantiate-zisslpcfi.sh).