...
While they may be rarely an appropriate interface for the normal operation of the automotive system, text consoles are expected to be present for development purposes.
TBC. It is expected that the virtual interface of the console is adequately defined by [VIRTIO] .and this specification specifies to follow that standard, in so far as it fits with the chosen guest operating system:
Requirements:
- To not impede efficient development, text consoles shall be according to the operating systems' normal standards so that they can be connected to any normal development flow.
- Text consoles are often connected to a shell capable of running commmands. For security reasons, text consoles shall MUST be possible to shut off entirely in the configuration of a production system. This configuration must furthermore MUST be not be modifiable from within any guest operating system.
- It is also recommended that countermeasures are introduced in place and documented during the development phase ensuring that there is no way to forget to disable these consoles in the final production system.
5.1 9pfs and host-to-vm filesystem sharing
...