Re: [virtio] [OASIS Issue Tracker] Created: (VIRTIO-45) Timer/Clock device

[Daniel Kiper <daniel.kiper@oracle.com>]

On Tue, Oct 29, 2013 at 01:13:20PM +0100, Daniel Kiper wrote:
> On Thu, Oct 24, 2013 at 12:47:39PM +0000, OASIS Issues Tracker wrote:
> > Timer/Clock device
> > ------------------
> >
> >                  Key: VIRTIO-45
> >                  URL: http://tools.oasis-open.org/issues/browse/VIRTIO-45
> >              Project: OASIS Virtual I/O Device (VIRTIO) TC
> >           Issue Type: New Feature
> >             Reporter: Daniel Kiper
> >
> >
> > There is no timer/clock device in VIRTIO specification. Maybe we should consider addition of one.
>
> General idea is that if we build hardware independent block, network
> and other devices then maybe it makes sens to build hardware independent
> timer/clock. As I know exiting hardware timers/clocks are quite difficult
> to emulate properly in virtual environments. Most problems are solved
> right now but maybe we should still consider addition of timer/clock spec
> in new VIRTIO spec. This way we will make stable time source for virtual
> guests without issues and limitations imposed by existing and new relevant
> hardware devices.

Do we want that kind of device in VIRTIO spec?

Daniel