= 006 Drivers on Host
:page-parent: Architecture Decision Records
:page-grand_parent: About Spectrum

// SPDX-FileCopyrightText: 2022 Unikie
// SPDX-License-Identifier: GFDL-1.3-no-invariants-or-later OR CC-BY-SA-4.0

== Status

Accepted

== Context

It's important to minimize the amount of software in Spectrum's Trusted
Computing Base (TCB).

== Decision

As few drivers as possible should be running on the Spectrum host.

== Consequences

- No networking on the host.
- Responsibilities of the host are expected to get smaller over time.
- More flexible management of devices. We need to decouple devices from the host
  based on their class -- like net, usb, bluetooth and GUI -- and pass them
  through to their respective device VMs.