OpenVMM Fuzzer Guide

Prerequisites

• Linux only — libfuzzer-sys doesn't support Windows.
• Nightly toolchain: rustup toolchain install nightly
• cargo-fuzz: cargo install cargo-fuzz
• lldb (for debugging): sudo apt-get install -y lldb
• aarch64 RUSTFLAGS: On aarch64, set RUSTFLAGS="-Ctarget-feature=+lse,+neon" or builds fail with atomics errors. Not needed on x86_64.

Fuzz targets

Fuzz targets live in <crate>/fuzz/ directories alongside the crate they test. Each has a Cargo.toml with cargo-fuzz = true metadata and a fuzz_<name>.rs binary. Find all targets:

cargo xtask fuzz list