[libvirt] [PATCH 0/4] support for QEMU vhost-user

This series adds support for the QEMU vhost-user feature to libvirt. vhost-user enables the communication between a QEMU virtual machine and other userspace process using the Virtio transport protocol. It uses a char dev (e.g. Unix socket) for the control plane, while the data plane based on shared memory. The XML looks like: <interface type='vhostuser'> <source type='unix' path='/tmp/vhost.sock' mode='server'/> <mac address='52:54:00:3b:83:1a'/> <model type='virtio'/> </interface> Our use case is the deployment of Snabbswitch in an OpenStack/NFV environment. Snabbswitch uses a Unix socket to implement the vhost-user control plane, thus we focused on the support for the type=unix attribute of the <source> element. To test it with Snabbswitch, it is necessary to apply the following patches (respectively from Chen Fan and Michele Paolino): http://www.redhat.com/archives/libvir-list/2014-June/msg01195.html http://www.redhat.com/archives/libvir-list/2014-June/msg01418.html It is also possible to directly checkout the Virtual Open Systems' libvirt repository(branch "vhost-user_support) at the address: https://github.com/virtualopensystems/libvirt. This patch is based on the previous work from Luke Gorrie: http://www.redhat.com/archives/libvir-list/2014-May/msg00934.html Michele Paolino (4): vhost-user support: domain configuration vhost-user support: qemu command-line vhost-user support: tests and docs vhost-user support: lxc,xenxs,uml docs/formatdomain.html.in | 34 +++++++++ docs/schemas/domaincommon.rng | 39 +++++++++++ src/conf/domain_conf.c | 81 ++++++++++++++++++++++ src/conf/domain_conf.h | 10 ++- src/lxc/lxc_process.c | 1 + src/qemu/qemu_command.c | 58 ++++++++++++++++ src/uml/uml_conf.c | 5 ++ src/xenxs/xen_sxpr.c | 1 + .../qemuxml2argv-net-vhostuser.args | 7 ++ .../qemuxml2argv-net-vhostuser.xml | 33 +++++++++ tests/qemuxml2argvtest.c | 1 + tests/qemuxml2xmltest.c | 1 + 12 files changed, 269 insertions(+), 2 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-net-vhostuser.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-net-vhostuser.xml -- 1.9.3