Re: [Xen-devel] [PATCH v3 2/6] libxl: do not add a vkb backend to hvm guests

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Tue, 2015-06-16 at 16:39 +0100, Stefano Stabellini wrote:
> On Tue, 16 Jun 2015, Wei Liu wrote:
> > On Wed, Jun 10, 2015 at 11:09:50AM +0100, Stefano Stabellini wrote:
> > > When QEMU restricts its xenstore connection, it cannot provide PV
> > > backends. A separate QEMU instance is required to provide PV backends in
> > > userspace, such as qdisk. With two separate instances, it is not
> > > possible to take advantage of vkb for mouse and keyboard, as the QEMU
> > > that emulates the graphic card (the device model), would be separate
> > > from the QEMU running the vkb backend (PV QEMU).
> > > 
> > 
> > The question is that how would this affect the non-split setup.
> 
> vkb is useful because emulating usb forces QEMU to wake up more often.
> However there is no way around it.

Does pvfb+vkb continue to work due to code somewhere else?

Do we think anyone will actually be using emulated VGA + PV input
devices?




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