On 25 October 2014 09:24, john.liuli <john.liuli@xxxxxxxxxx> wrote: > To get the interrupt reason to support such VIRTIO_NET_F_STATUS > features I add a new register offset VIRTIO_MMIO_ISRMEM which > will help to establish a shared memory region between qemu and > virtio-mmio device. Then the interrupt reason can be accessed by > guest driver through this region. At the same time, the virtio-mmio > dirver check this region to see irqfd is supported or not during > the irq handler registration, and different handler will be assigned. If you want to add a new register you should probably propose an update to the virtio spec. However, it seems to me it would be better to get generic PCI/PCIe working on the ARM virt board instead; then we can let virtio-mmio quietly fade away. This has been on the todo list for ages (and there have been RFC patches posted for plain PCI), it's just nobody's had time to work on it. thanks -- PMM _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
