NUL - The NOVA UserLand
The NOVA OS Virtualization Architecture
is a research project aimed at constructing a secure virtualization
environment with a small trusted computing base. NOVA consists of a
microhypervisor and an
user environment - NOVA User Land - running on top of it.
NUL is the multi-server user environment designed for NOVA. It is
componentized into host-drivers, device models and virtual
executors. From these components applications are build. The
most prominent apps are the Partition Manager, called sigma0, and
the x86 VMM (Virtual-Machine Monitor) called Vancouver.
The Partition Manager statically partitions the platform resources
such as memory or CPU. Device drivers, for example for the disk
and the graphics card, are linked to it. Moving them out to their
own tasks is currently work in progress.
The VMM allows to run unmodified guest operating systems ontop of
the microhypervisor. It contains the virtual device models to
give an OS the illusion of running on bare hardware. Furthermore
it emulates realmode and MMIO instructions and provides a virtual
Nightly generated NUL material:
- 11 May 2012
- NUL available via github
The latest development versions of the NOVA microhypervisor and the NOVA user land are available via github:
- 28 July 2011
- NUL 0.4 prereleased.
- Release message: NOVA microhypervisor and userland
- Contains the VMM Vancouver, the Partition Manager sigma0 and demo applications.
- Download the NUL sources v0.4 prerelease.
- 17 February 2011
- NUL 0.3 prereleased.
- 6 August 2010
- NUL 0.2 prereleased.
- 27 April 2010
- Clarified license plates.
- 24 December 2009
- NUL prereleased.
- Release message: NOVA microhypervisor and NOVA user land
- First prerelease of software running ontop of the NOVA microhypervisor.
- Contains the VMM Vancouver, the Partition Manager sigma0 and two demo applications.
- 24 December 2009
- NOVA Xmas Alpha Demo CD available.
- Precompiled NOVA microhypervisor, sigma0 and VMM binaries.
- Showcases Linux, Fiasco and Pistachio as guest operating systems in a VM.
- Runs on bare hardware that has Intel VT-x or AMD-V support. It does not run on Qemu.
- Download the NOVA Xmas-Alpha Demo CD.
- 23 December 2009
- NOVA microhypervisor prereleased.
- Runs on 32-bit x86 machines.
- A platform with Intel VT-x or AMD-V NPT is required for running guest operating systems in VMs.
- SMP is supported, but not required.
- See the NOVA microhypervisor website.
Last modified: Thu May 11 10:01:03 CEST 2012