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Environments that leverage hardware-assisted virtualization for executing guest code.
Distinguishing note: Specifically targets KVM-based execution rather than general emulation.
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Firecracker is a virtual machine monitor that leverages hardware-assisted virtualization to create and manage isolated execution environments. It functions as a lightweight runtime designed to launch virtual machines with minimal memory overhead and near-instantaneous startup times, providing the security of traditional hardware virtualization with the efficiency of containerized workloads. The project distinguishes itself through a security-focused architecture that enforces strict process boundaries using system-level barriers and restricted user privileges. It minimizes the attack surface
Executes guest code directly on the host processor using KVM for near-native performance.