On Fri, 15 May 2020 09:04:13 +0200 Thomas Huth <th...@redhat.com> wrote:
> On 05/05/2020 15.50, Cornelia Huck wrote: > > +Examples > > +-------- > > + > > +* a virtio-net device, cssid/ssid/devno automatically assigned:: > > + > > + -device virtio-net-ccw > > + > > + In a Linux guest (without default devices and no other devices specified > > + prior to this one), this will show up as ``0.0.0000`` under subchannel > > + ``0.0.0000``. > > Maybe mention the QEMU side again, e.g. that when you run "info qtree" > in the HMP monitor, you see the device with dev_id = "fe.0.0000". Yes, that's a good idea. > > > +* a virtio-rng device in subchannel set ``0``:: > > + > > + -device virtio-rng-ccw,devno=fe.0.0042 > > + > > + If added to the same Linux guest as above, it would show up as > > ``0.0.0042`` > > + under subchannel ``0.0.0001``. > > Does "same" matter here? Otherwise, maybe just say "to a Linux guest" ? I wanted to provide the subchannel number in my examples as well. As QEMU always picks the first free one (and you cannot specify it manually), I wanted to make the examples build upon each other. > > > +* a virtio-gpu device in subchannel set ``2``:: > > + > > + -device virtio-gpu-ccw,devno=fe.2.1111 > > + > > + If added to the same Linux guest as above, it would show up as > > ``0.2.1111`` > > + under subchannel ``0.2.0000``. > > Dito. dito :) > > > +* a virtio-mouse device in a non-standard channel subsystem:: > > + > > + -device virtio-mouse-ccw,devno=2.0.2222 > > + > > + This would not show up in a standard Linux guest. > > Ok ... and what happens if you use devno=0.0.1234 ? Will that then show > up under fe.0.1234 in the guest?? That won't show up in the guest, either -- do you think I should add an example for that as well?
