On Wed, 22 Aug 2018 15:16:19 -0400 Tony Krowiak <akrowiak@xxxxxxxxxxxxx> wrote: > One of the things I suggested in a private conversation with Christian > earlier > today was to provide an additional rw sysfs attribute - a boolean - that > indicates > whether all usage domains should also be control domains. The default > could be > true. This would allow one to configure guests with usage-only domains > as well > as satisfy the convention. Would this additional attribute then control "add usage domains to the list of control domains automatically", or "don't allow to add a usage domain if it has not already been added as a control domain"? One thing I'm still unsure about is how libvirt comes into the picture here. Will it consume the setting, or actively manipulate it? [In general, I'm not very clear about how libvirt will interact with the whole infrastructure...]