On Fri, 2010-04-02 at 15:25 +0800, xiaohui.xin@xxxxxxxxx wrote:
The idea is simple, just to pin the guest VM user space and thenWhat is the advantage of this approach compared to PCI-passthrough
let host NIC driver has the chance to directly DMA to it.
The patches are based on vhost-net backend driver. We add a device
which provides proto_ops as sendmsg/recvmsg to vhost-net to
send/recv directly to/from the NIC driver. KVM guest who use the
vhost-net backend may bind any ethX interface in the host side to
get copyless data transfer thru guest virtio-net frontend.
of the host NIC to the guest?
Does this require pinning of the entire guest memory? Or only the