On 07/26/2013 11:47 AM, mrhines@linux.vnet.ibm.com wrote:
From: "Michael R. Hines" <mrhines@us.ibm.com>
QEMU has in tree now planned for 1.6 support for RDMA-based live migration.
Changes to libvirt: 1. QEMU has a new 'setup' phase in their state machine. 2. Expose the 'x-rdma' migration protocol URI. 3. Expose the 'x-rdma-pin-all' capability for pre-registration of memory.
The x- prefix means that the migration is still experimental; do we want to be codifying the use of experimental API into libvirt, or is it time for a patch to qemu to remove the x- prefix? Back in the 1.5 timeframe, when RDMA was first proposed, the x- prefix made sense, but now that we are closer to qemu 1.6, and you are trying to get libvirt to drive it, that's a declaration of stability. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org