Re: [Xen-users] SMP support in Windows domU

["Jordi Segues" <jordisd.mailing@xxxxxxxxx>]

Hello,

I've followed your conversation...
I'm trying too to run a windows hvm guest with several vcpus.

I've Xen 3.0.4 installed and recompiled on a Debian Etch, and all
works great, unless the SMP support in HVM windows guests.

In my config file I have:
....
vcpus=2
acpi=1
apic=1
...

But my HVM guest still don't detect 2 vcpus.
I've tried it after the windows install, and then I've reinstalled
windows with this config file, but nothing changes (thought windows
detects it at install time).

I've read a post in this mailing list (don't have the link) where
someone says that the hvmloader firmware must be recomplied
specifically. And I've understanded too that the recompilation is
static, so all the vcpus number of all hvm guests will have to be
identical.

I haven't tried to do this, but I thought that xen 3.0.4 offered this feature.
So like Bart, I would like to know if anyone have done it! :)
Anyone have an HVM windows guest running with 2 vcpus? and if yes, how?

Well, maybe the 3.1 release (3.0.5) will fix this, and maybe not,
cause everyone says "it should", but I can't find someone really doing
it. :)

Thank you very much!
And I would like to thanks Mats too, who's allways here, and answers a
lot of questions very clearly.

Cordialy,

Jordi.S

On 5/14/07, Petersson, Mats <Mats.Petersson@xxxxxxx> wrote:
> > -----Original Message-----
> > From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> > [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of
> > bdubas@xxxxxxxxxxx
> > Sent: 14 May 2007 10:48
> > To: xen-users@xxxxxxxxxxxxxxxxxxx
> > Subject: RE: [Xen-users] SMP support in Windows domU
> >
> >
> > I want to install drivers for Windows as you describe...
> >
> > > The right solution is to install a Para-virtual driver, but
> > for Windows,
> > > you can't just build one yourself (unless you are
> > experienced in Windows
> > > driver design), so you need one that matches your Xen
> > version (easiest
> > way
> > > to achieve that is to install a package with Xen and the PV
> > driver, such
> >
> > > as XenExpress). The para-virtual driver will install as a
> > device driver
> > in > Windows, but instead of talking to a virtualized "true"
> > > network device, it just packs up the data to go on the
> > network and sends
> > > it directly to the Dom0 network backend driver.
>
> I haven't myself done this. I think you need to remove the "ioemu" from the 
> network device.
>
> And you may have to have two disks (one to boot from that uses the "ioemu" 
> model, and one that you use for applications/data that uses the PV driver).
>
> --
> Mats
> >
> >
> > --
> > ASEC S.A.
> > Bartłomiej Dubas
> >
> > -----Original Message-----
> > From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> > [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Petersson,
> > Mats
> > Sent: Monday, May 14, 2007 11:36 AM
> > To: Bartlomiej Dubas; xen-users@xxxxxxxxxxxxxxxxxxx
> > Subject: RE: [Xen-users] SMP support in Windows domU
> >
> >
> >
> > > -----Original Message-----
> > > From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> > > [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of
> > > bdubas@xxxxxxxxxxx
> > > Sent: 14 May 2007 10:34
> > > To: xen-users@xxxxxxxxxxxxxxxxxxx
> > > Subject: RE: [Xen-users] SMP support in Windows domU
> > >
> > >
> > > Thanks Mats,
> > >
> > > What kind of entry I should have in quest config. Should I
> > left it the
> > > same as is or pas them without qemu option?
> >
> > What is it you want to achieve. Your config looks pretty much
> > like the one
> > I'm using.
> >
> > --
> > Mats
> > >
> > > My carnet config looks like this:
> > > disk            = [ 'phy:/dev/raid-0/serpiko,ioemu:hda,w' ]
> > > memory          = 512
> > > vcpus           = 2
> > > cpus            = "4-5"
> > > builder         = 'hvm'
> > > device_model    = '/usr/lib/xen/bin/qemu-dm'
> > > kernel  = '/usr/lib/xen/boot/hvmloader'
> > > name            = 'win2003'
> > > vif             = [ 'type=ioemu,bridge=xenbr0' ]
> > > stdvga          = 0
> > > sdl             = 0
> > > vnc             = 1
> > > vncviewer       = 0
> > > ne2000          = 0
> > > localtime       = 0
> > > on_poweroff     = 'destroy'
> > > on_reboot       = 'restart'
> > > on_crash        = 'restart'
> > > boot            = 'c'
> > > acpi            = 1
> > > apic            = 1
> > >
> > >
> > > --
> > > ASEC S.A.
> > > Bartłomiej Dubas
> > >
> > >
> > >
> > > _______________________________________________
> > > Xen-users mailing list
> > > Xen-users@xxxxxxxxxxxxxxxxxxx
> > > http://lists.xensource.com/xen-users
> > >
> > >
> > >
> >
> >
> >
> > _______________________________________________
> > Xen-users mailing list
> > Xen-users@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-users
> >
> > _______________________________________________
> > Xen-users mailing list
> > Xen-users@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-users
> >
> >
> >
>
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users