Re: Who uses TYPE_VMBUS_DEVICE?

[Eduardo Habkost]

On Fri, Oct 09, 2020 at 11:05:31PM +0200, Maciej S. Szmigiero wrote:
> Hi Eduardo,
> 
> On 09.10.2020 21:39, Eduardo Habkost wrote:
> > Hi,
> > 
> > I've just stumbled upon hw/hyperv/vmbus.c and I'm a bit confused:
> > I haven't found any subclasses of the abstract type
> > TYPE_VMBUS_DEVICE in the QEMU tree.
> > 
> > I see a few patches in qemu-devel implementing a few vmbus
> > devices, but none were merged to qemu.git master.  Are there any
> > short term plans to merge vmbus device implementations in QEMU?
> > 
> 
> Perhaps this depends on your definition of "short term".
> At least one VMBus driver (hv-balloon) is being actively worked on
> (by me).

Good to know, thanks!

> 
> Also, a working VMBus implementation (even without any downstream
> devices) is apparently required for high-performance Windows
> kernel debugging interfaces.

Other code might be required, but TYPE_VMBUS_DEVICE seems to be
dead code (which can't be executed or tested at all) unless a
concrete class exists.

-- 
Eduardo