On Thu, Jul 25, 2024 at 12:53:34PM +0100, David Woodhouse wrote: > On Thu, 2024-07-25 at 12:31 +0100, Daniel P. Berrangé wrote: > > On Thu, Jul 25, 2024 at 10:56:05AM +0100, David Woodhouse wrote: > > > Hi Michael, thanks for the review! > > > > > > On Thu, 2024-07-25 at 01:48 -0400, Michael S. Tsirkin wrote: > > > > Do you want to just help complete virtio-rtc then? Would be easier than > > > > trying to keep two specs in sync. > > > > > > The ACPI version is much more lightweight and doesn't take up a > > > valuable PCI slot#. (I know, you can do virtio without PCI but that's > > > complex in other ways). > > > > In general it shouldn't have to take up a PCI slot, that's just > > a common default policy. virtio-devices only need a dedicated > > slot if there's a need to do hotplug/unplug of them. There is a > > set of core devices for which hotplug doesn't make sense, which > > could all be put as functions in the same slot. ie virtio-rng, > > virtio-balloon and virtio-rtc, could all live in one slot. > > But if you don't have any virtio devices already, you still need one > slot to put them in.
Perhaps - it may still be practical to be a function within a slot shared with non-virtio PCI devices too. With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
