[GSoC] Mocking Framework for Virtio Queues

[andreeaflorescu]

This project revolves around designing a reusable framework for mocking the driver side of a VirtQueue operation. It would allow rust-vmm crates and other projects to use it and would provide a cleaner alternative to mocking code already found in vm-virtio.

The framework would at first provide users with more granular control over mocking what the driver will place in the queue and will later support mocking more advanced features such as notification suppression, indirect descriptors and other device specific features.

This is a parent issue for developing the mocking framework, which is a project developed as part of Google Summer of Coding (GSoC).

[andreeaflorescu]

Sub-tasks:

• [x] [#44] Cleanup the vm-virtio repository by transforming it to a workspace
• [x] [#60 ] Identify existing mock-up approaches
• [x] [#72 ] Unify mock logic in benches & unit tests
• [x] [#62] Design a mocking framework
• [ ] [#61] Implement the mocking framework (this is a high level task, to be split in sub-tasks once we have a design document)