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[Xen-devel] dom0/pvh: Dom0 PVH with PCI passthrough support status


I would like to use Dom0 with PVH mode together with PCI passthrough in order to compare PVH and HVM in a real test scenario for early adoption of PVH. The minimum setup needed is to have the possibility to assign to a domain a PCI device that is passthrough.

Are there any patches in review or previous discussions on having PCI passthrough in Dom0 PVH?

Our internal tests showed promising results regarding performance (no PCI passthrough), but nonetheless as expected in this early stage of development a small decrease between 2.5 – 10%. Sacrificing performance for a boost in security offered by PVH should be a priority. For the final results to be conclusive and have a fair comparison, it is necessary to have a rough implementation of PCI passthrough (e.g. for a network device).

Any help towards this matter would be greatly appreciated.


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