Re: [win-pv-devel] New windows pv drivers question

[Fabio Fantoni <fabio.fantoni@xxxxxxx>]

Il 19/09/2014 11:22, Paul Durrant ha scritto:
> Moving xen-devel to bcc and adding win-pv-devel...
>
> > -----Original Message-----
> > From: Fabio Fantoni [mailto:fabio.fantoni@xxxxxxx]
> > Sent: 19 September 2014 09:55
> > To: xen-devel; Paul Durrant
> > Subject: New windows pv drivers question
> >
> > Hi, I saw the "new" pvdriver drivers in xen's git repository and the new
> > wiki pages about.
> > I want start to try them if possible (for example to seems if occasion
> > windows domUs network crash  I had with xen 4.4-stable and xen-unstable
> > is ejbpv driver or xen problem), I saw that there are 3 repository in
> > xenserver's github still missed here but seems with a fast look that all
> > essential drivers repositories are in xen's git now.
> Fabio,
>
> That's right. I have a blog to introduce the new Xen Project Windows PV Drivers 
> sub-project ready to go but it's run into some technical difficulties; 
> hopefully I'll get it out early next week.
> Not all the code that is relevant to XenServer is necessarily relevant to the 
> wider Xen community; e.g. the guest agent and installer are very much 
> XenServer-specific and therefore they do not form part of the sub-project. All 
> the driver code is available on xenbits (under the pvdrivers/win directory) 
> though and it has been stripped of XenServer branding. (The branding is now 
> parameterized and applied at build time, so anyone can build their own branded 
> binaries should they wish to).
>   
> > Is possible start basic tests of them or there are still other important
> > changes and/or fixes to do?
> > If is possible start test them there is a testing build available or or
> > should I do it?
> I am setting up some build infrastructure as part of the sub-project - in fact 
> I just got it going for the first time yesterday - and I hope to have 
> un-branded binary packages available for the community in the very near future.
> In the meantime, there are build instructions available on the wiki at 
> http://wiki.xenproject.org/wiki/Windows_PV_Drivers/Building which are fairly 
> straightforward, so you should be able to build your own. Happily Microsoft 
> made building drivers free again the with Windows 8.1 WDK as you can now use 
> the Visual Studio 2013 Express (i.e. free) edition compiler. Note that you 
> don't have to use the Visual Studio IDE; there are python scripts in the driver 
> repositories which wrap the msbuild utility so you can drive it all from the 
> command line :-)
>
> AFAIK the drivers should work in pretty much any host environment: I have been 
> testing them myself on a recent build of xen-unstable using my own 3.14-ish 
> dom0 kernel and upstream QEMU. Just make sure you enable test-signing in your 
> VMs.
>
> > Thanks for any reply and sorry for my bad english.
> No problem. Please get back to me (cc-ing win-pv-devel) if you do run into 
> difficulties.
>
> Cheers,
>
>      Paul
Thanks for your reply.
Soon as I finish downloading everything needed I'll try to do a build.
I have other 2 questions:

I saw that the xen's repositories are forked by xenserver's github ones 
but the changes after are merged in both, will remain different 
projects? One project compatible for all cases I think will be better 
quality and less waste of time.
About repositories missed now in xen there is win-xenguestagent that 
contain some features very useful, in particolar shutdown (already 
present in gplpv I use in production now) and resetting system time 
following resume-from-suspend and migration (now missed in gplpv but 
will solves login problem after restore in domUs that are in windows 
domain). Will be adapted for xen also that?
Thanks for any reply.

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