Re: [Xen-users] Have you ever met this behavior with IGD passthrough?

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Wed, Aug 07, 2013 at 09:07:40PM +0800, G.R. wrote:
> Actually I appreciate if you can share your experience.
> I really want to make sure if the issue is specific to my HW.
> More below.
>

I think I have a similar CPU available, so I can try with that in a week or 
so.. 

 
> On Wed, Aug 7, 2013 at 6:25 PM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
> > On Wed, Aug 07, 2013 at 06:16:31PM +0800, G.R. wrote:
> >> Hi guys, any comment on this?
> >>
> >
> > Can you please remind about your configuration:
> >
> > - Which CPU? Which IDG/GPU?
> I7 3770 with IGD 4000.
> 
> > - HVM guest Windows version? 32b/64b?
> win7 64 bit version.
> > - Xen version
> All version from xen 4.1.x to xen 4.3
> > - I assume you're using qemu-traditional.. which additional patches?
> You should know the patch set I used -- the patch series I created and
> tried to submit (you pinged me several times on it).
> 

Yep, I do :) but I mostly meant if you have any other patches in addition to 
those 3 patches from the IGD passthru series. 

> > - dom0 kernel version
> All kernel versions I ever used. 3.6.x 3.8.7 3.9.8
> 
> > - xm or xl?
> xl
> > - HVM guest configfile
> 
> name = 'gamebox'
> builder = 'hvm'
> vcpus = '4'
> cpus = "0-4"
> memory = '3072'
> 

Did you try with only 2GB? or 1GB? Does it affect anything? 


-- Pasi


> disk = ['file:/mnt/vmfs/Windows/GameBox/gamebox.img,xvda,w']
> boot = 'c'
> 
> vif = [ 'mac=00:18:3E:51:60:4C,bridge=xenbr0,model=e1000' ]
> 
> on_poweroff = 'destroy'
> on_reboot = 'restart'
> on_crash = 'restart'
> 
> #Para-virtualisation support
> xen_platform_pci='1'
> #Microsoft Hyper-V support
> viridian='1'
> 
> # Use local time instead of UTC
> localtime='1'
> # Absolute coordinate pointer device, better support VNC for windows.
> usbdevice='tablet'
> 
> #Passthrough
> device_model_version="qemu-xen-traditional"
> gfx_passthru=1
> pci=['00:02.0', '00:1b.0', '00:1a.0']
> 
> vnclisten = '0.0.0.0'
> vncpasswd = ''
> serial='pty'
> 
> >
> >
> > Thanks,
> >
> > -- Pasi
> >
> >> On Fri, Jul 26, 2013 at 3:04 PM, G.R. <firemeteor@xxxxxxxxxxxxxxxxxxxxx> 
> >> wrote:
> >> > Hi guys,
> >> >
> >> > I know that both of you are playing with IGD passthrough. So I would
> >> > like to check with you if I'm the only one that saw this behavior.
> >> > In my system, the panel becomes flickering rapidly with different
> >> > colors after domU starts. This lasts until the guest loads gfx driver.
> >> > There is a workaround by loading the VGA module in GRUB2, which
> >> > greatly shorten the time it flickers. But with a natively installed
> >> > windows guest, the flickering lasts until the OS get the login screen
> >> > prepared. But if the windows is not properly shutdown and the system
> >> > enters the repairing screen in next boot, you can simply see nothing
> >> > in this case.
> >> >
> >> > This is not show-stopper but is quite annoying. But to my surprise, it
> >> > seems that nobody mentions this behavior in blogs / mail-lists. What's
> >> > your case then?
> >> >
> >> > PS: Previously (e.g. xen 4.2.x), this flickering only happens happen
> >> > on a second guest boot and later-on (Per host reboot). I just upgraded
> >> > to xen 4.3.0, and haven't got chance to see if this behavior has
> >> > changed.
> >> >
> >> > Thanks,
> >> > Timothy

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