Re: [Qemu-devel] [PATCH] Share Vmware communication port between devices

[Anthony Liguori]

On Tue, 2007-08-21 at 22:10 +0200, Hervé Poussineau wrote:
> Hi,
> 
> Some more information about the VMware backdoor can be found at:
> http://chitchat.at.infoseek.co.jp/vmware/backdoor.html

Are there interesting apps that make use of this?  I really don't like
the idea of supporting this PV protocol if we're not going to get
interesting apps out of it.  The project you referenced earlier didn't
have source code available (you had to request it privately) and I don't
think it's being generally used.

The problem with this particular protocol is that it's inherently
x86-specific b/c it depends on doing PIO in userspace.  If we're just
looking to get this functionality, it would be better to do it as a PCI
device or something that could actually work on non-x86 architectures.

In my mind, vmmouse was worth implementing since the driver already
exists and was packaged in a number of distros.

Regards,

Anthony Liguori

> Hervé
> 
> 
>