Signed-off-by: Malte Janduda <mail@janduda.net>
qemu -m 1024 -drive format=raw,file=rbd:data/squeeze,id=drive1,if=none \
-device driver=ide-hd,drive=drive1,discard_granularity=512
-Note that this uses the IDE driver. The virtio driver does not
-support discard.
+Note that this uses the IDE driver. The virtio driver supports discard since Linux kernel version 5.0.
If using libvirt, edit your libvirt domain's configuration file using ``virsh
edit`` to include the ``xmlns:qemu`` value. Then, add a ``qemu:commandline``