On Thu, 1 Oct 2015 09:51:42 +0530 Venkateswara Rao Dokku <dvrao.584 at gmail.com> wrote:
> Hi, > > If we go through the DPDK code it is observed that we are using MMIO for > Virt-IO devices. But in the Virt-IO specification, it is written that from > Virt-IO 1.0 onwards only they are supporting MMIO, all previous versions > uses Port IO for RX/TX notifications. > > So, If I use VirtIO 0.9, Can I get the MMIO based notifications for RX/TX > or is it supported only for Virt-IO 1.0 onwards? > Although the virtio device will bind to the mmio address in some cases, it does not use that. It uses i/o port access (see iopl) to activate host.