Dev.to
6/28/2026

The original title is "Building a KVM Virtual Machine in Rust: Running a binary"
Original: Building a KVM Virtual Machine in Rust: Running a binary
Short summary
Part 3 of a KVM-in-Rust tutorial covering binary loading into memory, vCPU creation via ioctl calls, and x86-64 register initialization. Demonstrates how to replicate QEMU's register setup (sregs2/regs) with code examples and strace analysis before KVM_RUN.
- •Load binary into KVM memory at arbitrary addresses using unsafe Rust pointer operations
- •Create vCPUs by calling KVM_CREATE_VCPU ioctl and analyzing register setup sequences from QEMU strace
- •Initialize CPU registers (sregs2/regs) to match QEMU defaults before executing KVM_RUN
Generated with AI, which can make mistakes.
Is this a good recommendation for you?



