On 03/05/2019 11:55, Cornelia Huck wrote: > On Fri, 26 Apr 2019 20:32:35 +0200 > Halil Pasic <pasic@xxxxxxxxxxxxx> wrote: > >> Enhanced virtualization protection technology may require the use of >> bounce buffers for I/O. While support for this was built into the virtio >> core, virtio-ccw wasn't changed accordingly. >> >> Some background on technology (not part of this series) and the >> terminology used. >> >> * Protected Virtualization (PV): Uuh, you are aware that "PV" in virtualization environment is used as "Para-Virtualization" (e.g. in Xen) today? I believe you are risking a major mis-understanding here. Juergen