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

[Fabio Fantoni <fabio.fantoni@xxxxxxx>]

Il 22/09/2014 11:30, Fabio Fantoni ha scritto:
> 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.
I installed in one windows 8.1 enterprise 64 bit domU (all updated) WDK 
8.1, visual studio 2013.3 express, latest python 3.
I tried to build xenbus following the README and launching build.py free.
After some minutes of compile it fails with this error:
> Compilazione di 
> "C:\Users\Emilio\Desktop\pvdrivers\xenbus\vs2013\xen\xen.vcxproj
> " (2) dal progetto 
> "C:\Users\Emilio\Desktop\pvdrivers\xenbus\vs2013\xenbus.sln"
> (1) sul nodo 1 (destinazioni predefinite).
> PrepareForBuild:
>   Creazione directory "..\xen\Windows7Release\x64\".
>   Creazione directory "..\Windows7Release\x64\".
>   Creazione directory "..\xen\Windows7Release\x64\xen.tlog\".
> InitializeBuildStatus:
>   Creazione di 
> "..\xen\Windows7Release\x64\xen.tlog\unsuccessfulbuild". Ô stato
> specificato "AlwaysCreate".
> _MASM:
>   Assembling ..\..\src\xen\amd64\hypercall_thunk.asm...
>   cmd.exe /C 
> "C:\Users\Emilio\AppData\Local\Temp\tmp8eb6acdfb5f4436ea3385f199faf
> ad19.cmd"
>   ml64.exe /c /nologo /Zi 
> /Fo"..\xen\Windows7Release\x64\hypercall_thunk.obj" /W
> 3 /errorReport:prompt  /Ta..\..\src\xen\amd64\hypercall_thunk.asm
> _MASM:
> Traceback (most recent call last):
>   File "C:\Users\Emilio\Desktop\pvdrivers\xenbus\build.py", line 365, 
> in <module
> >
>     build_sln(driver, release, 'x64', debug[sys.argv[1]], vs)
>   File "C:\Users\Emilio\Desktop\pvdrivers\xenbus\build.py", line 138, 
> in build_s
> ln
>     msbuild(platform, configuration, 'Build', name + '.sln', '', vs)
>   File "C:\Users\Emilio\Desktop\pvdrivers\xenbus\build.py", line 122, 
> in msbuild
>     status = shell([bin], dir)
>   File "C:\Users\Emilio\Desktop\pvdrivers\xenbus\build.py", line 100, 
> in shell
>     print(line.rstrip())
>   File "C:\Python34\lib\encodings\cp850.py", line 19, in encode
>     return codecs.charmap_encode(input,self.errors,encoding_map)[0]
> UnicodeEncodeError: 'charmap' codec can't encode character '\u2026' in 
> position
> 28: character maps to <undefined>
I did something wrong or there is a bug or unexpected case?
Thanks for any reply.


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