RE: [Xen-devel] RE: GPL Win PV driver issues

[Brian Wolfe <brianw@xxxxxxxxxxxx>]

I wish I could help out a bit by compiling for nt2k pro but
unfortunately MS wants me to buy their developers subscription for $1k+
USD. 8-( I can't afford that kind of cash. *sigh*

If anyone can front me the necessary installables for compiling the
windows PV drivers I'm willing to have a go at helping out. :) 


On Sat, 2007-12-15 at 09:17 +1100, James Harper wrote:
> > 
> > I've been thinking about this. Isn't it possible to allow both QEMU
> and
> > PV devices to exist, and create a combined HW/PV driver? I.e., a
> driver
> > for both the emulated device under Windows (as a later version than
> the
> > one shipped in Windows). Then, if really running under Xen, the driver
> > instructs dom0 to optionally terminate the QEMU server side and use
> the
> > PV approach for communication.
> > 
> > As the emulated devices are well understood (and there's QEMU's
> source),
> > would this be hard to do?
> > 
> 
> The way I've implemented the driver for the Xen PCI device is that it
> becomes a bus driver and enumerates the things under 'devices' in
> xenstore (eg vbd, vif, console) and then drivers attach to those.
> 
> For your idea to work, a single driver would need to attach to both the
> emulated PCI disk/network adapter, and the Xen PV device. I don't think
> this is possibly under the windows driver model.
> 
> But I've only been writing windows drivers for a few months now, so
> there's probably a lot of stuff I don't know :)
> 
> James
> 
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