[PATCHv2 0/4] Add qemu support setting qos via ovs on ovs interface

--- diff to v1: - move qemuDomainDefIsOvsport from src/qemu/qemu_domain.c to src/conf/domain_conf.c - call virCommandFree(cmd)free cmd before reusing it. - add g_autofree to variables. - reduce usage of virReportError(), and coupled it with return -1. - fix remove port qos error. - optimise code structure. Thanks to Michal Privoznik for helping reviewing these patches. Now libvirt use tc rules to manage interface's qos. But when an interface is created by ovs, there is no qos setting result in ovs database. Therefore, qos of ovs port should be set via ovs management command. We add a function to tell whether a port definition is an ovs managed virtual port. Change default qdisc rules, which return 0 directly if the port is ovs managed(When the ovs port is set noqueue, qos config on this port will not work). Add ovs management function of setting and cleaning qos. Then check if the port is an ovs managed port during its life cycle, and call the ovs management function to set or clean qos settings. zhangjl02 (4): virDomain: interface: add virDomainNetDefIsOvsport virDomain: interface: add virNetDevOpenvswitchInterfaceSetQos and virNetDevOpenvswitchInterfaceClearQos qemu: interface: remove setting noqueue for ovs port qemu: interface: check and use ovs command to set qos of ovs managed port src/conf/domain_conf.c | 8 + src/conf/domain_conf.h | 2 + src/libvirt_private.syms | 3 + src/qemu/qemu_command.c | 10 +- src/qemu/qemu_domain.c | 3 +- src/qemu/qemu_driver.c | 22 ++- src/qemu/qemu_hotplug.c | 39 +++-- src/qemu/qemu_process.c | 10 +- src/util/virnetdevopenvswitch.c | 271 ++++++++++++++++++++++++++++++++ src/util/virnetdevopenvswitch.h | 11 ++ 10 files changed, 362 insertions(+), 17 deletions(-) -- 2.30.2.windows.1