SLIDE 1
What We're Doing
- Provenance-Aware
Storage Systems Group
- Modified Linux
Kernel
- Captures rich
Collecting Provenance via the Xen Hypervisor Peter Macko, Marc - - PowerPoint PPT Presentation
Collecting Provenance via the Xen Hypervisor Peter Macko, Marc - - PowerPoint PPT Presentation
Collecting Provenance via the Xen Hypervisor Peter Macko, Marc Chiarini, Margo Seltzer Harvard SEAS TaPP '11 What We're Doing Provenance-Aware Storage Systems Group Modified Linux Kernel Captures rich relationships between
SLIDE 2
SLIDE 3
A Problem
- Maintaining the provenance interceptor is
unsustainable.
- Need a way of collecting system-level
provenance that is:
– easier to maintain. – more portable. – more likely to be adopted.
- Helps the development effort (find bugs, etc)!
SLIDE 4
Our Approach
- Collect the same kind
- f system-level
provenance from virtual machines running under the Xen Hypervisor.
Dom0 DomU Guest (PV) Xen Mgmt Interface Emulated Devices Device Drivers Backend Drivers Frontend Drivers vCPU vMem Scheduler DomU Guest (HVM) Device Drivers Applications Xen Hypervisor CPU Memory Network Physical Hardware Applications Blk Devs
Hypercalls
SLIDE 5
Challenges
- Potential performance impact?
- Where to store provenance?
- How to extract provenance that is not
available via system call from guest memory?
- How to extend to other guest OSes?
SLIDE 6