[libvirt] [PATCH 0/3] Add callback mech for qemu and nodedev

Add a callback mechanism for the nodedev driver (mimics the nwfilter) to allow the (c)ability to directly enumerate node devices and add/remove devices based on udev events. This is a set up of sorts for the ability to add a vHBA definition to a domain, create the vHBA, and allow the LUN's associated with the vHBA to be automagially added/removed to/from the domain. The vHBA code exists partially in some local branches I have, but I figure I need to get this part of the logic accepted. See bz: https://bugzilla.redhat.com/show_bug.cgi?id=1404964 for some "thoughts" on where this is headed. An alternative solution would require the qemu driver to handle or recognize nodedev connection events, but would require a few more calls in order to get the data needed for vHBA handling. The logic ends up being "hidden" behind a new qemu configuration variable "enumerate_nodedev" (I'm fine using a different name). The default is for the code to be disabled. The end result may be usable by the (on list) vGPU mdev code as well as a way to find/recogize an mdev create and the various "children" of the mdev that would be created (and of course deletion). But that's just me considering other uses. John Ferlan (3): nodedev: Add driver callback mechanism to add/remove devices qemu: Use nodedev callback mechanism to to get a nodedev data qemu: Add configuration variable to control nodedev enumeration src/check-aclrules.pl | 3 +- src/check-driverimpls.pl | 1 + src/conf/node_device_conf.c | 125 ++++++++++++++++++++++++++++++++++++- src/conf/node_device_conf.h | 18 ++++++ src/libvirt_private.syms | 3 + src/node_device/node_device_udev.c | 29 +++++++++ src/qemu/libvirtd_qemu.aug | 1 + src/qemu/qemu.conf | 19 ++++++ src/qemu/qemu_conf.c | 53 ++++++++++++++++ src/qemu/qemu_conf.h | 17 +++++ src/qemu/qemu_driver.c | 34 ++++++++++ src/qemu/test_libvirtd_qemu.aug.in | 1 + 12 files changed, 302 insertions(+), 2 deletions(-) -- 2.7.4