Module backend 

The hypervisor backend trait surface.

Per 99-key-decisions.md § D1 squib ships exactly one production backend: HVF on Apple Silicon. The trait stays generic so the in-process BackendKind::Mock can stand in for unit tests without a live hypervisor.

Structs

BackendCapabilities

What a backend can and cannot do, surfaced to the VMM at construction time.

Enums

BackendKind

Identifies the concrete backend implementation reporting BackendCapabilities.

Constants

MAX_SUPPORTED_VCPUS

Hard upper bound on vcpu_count, matching upstream Firecracker’s MAX_SUPPORTED_VCPUS.

Traits

HypervisorBackend

The top-level entry point: a backend that can create VMs.

Vm

A live virtual machine handle owned by a HypervisorBackend.