On Fri, Sep 13, 2024 at 08:39:26AM -0600, Mathieu Poirier wrote: > KVM has nothing to do with this. The life of a virtio device starts > in the VMM (Virtual Machine Manager) where a backend device is created > and a virtio MMIO entry for that device is added to the device tree > that is fed to the VM kernel. When the VM kernel boots the virtio > MMIO entry in the DT is parsed as part of the normal device discovery > process and a virtio-device is instantiated, added to the virtio-bus > and a driver is probed. > > I suggest you start looking at that process using the kvmtool and a > simple virtio device such as virtio-rng. I would repeat again, I think trying to create a companion virtio device to go along with a real vPCI device and then logically associating both of them with a single driver is going to cause so much pain you should not do it. Find a way to send your RPCs through your own vPCI device. Jason
