Avi Kivity wrote:If a pci device is capable of dma (or issuing interrupts), it will be useless with pv pci.
Hrm, I think we may be talking about different things. Are you thinking that the driver I posted allows you to do PCI pass-through over virtio? That's not what it is.
The driver I posted is a virtio implementation that uses a PCI device. This lets you use virtio-blk and virtio-net under KVM. The alternative to this virtio PCI device would be a virtio transport built with hypercalls like lguest has. I choose a PCI device because it ensured that each virtio device showed up like a normal PCI device.
Am I misunderstanding what you're asking about?