Hi, > Can virtqueues be added dynamically? No. > Or can we have > fixed but enough (e.g., 64) virtqueues? Well, I wouldn't bet that any specific number is enough. When gtk starts rendering using vulkan by default the number of contexts of a standard gnome desktop will be pretty high I guess ... We can have a host-configurable number of virtqueues. Typically the guest can figure the number of available queues from config space. One common usage pattern (seen in block/net devices) is to have the number of virtqueues equal the number of vcpus, so each vcpu has dedicated virtqueue. For virtio-gpu it is probably more useful to bind contexts to virtqueues. As long as we have enough virtqueues each context can have its own. Once we run out of virtqueues we have to start sharing. On the host side it probably makes sense to have one process per virtqueue. cheers, Gerd _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
