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

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

On Tue, Nov 05, 2013 at 11:42:56AM +0100, Daniel Kiper wrote:
> 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?

VRITIO WD01 is about to release. I think that it is good
time to discuss this issue right now. I am looking for
your comments on it.

Daniel