Re: [Xen-devel] VGA passthrough is not working

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Tue, Jun 10, 2014 at 01:10:01PM +0400, Maxim Gordeev wrote:
> Sorry, Xen don`t map memory BAR1 when I use "qemu-dm" or
> "qemu-xen-traditional"...

Could you attach your qemu-dm files, the lspci -vvv from dom0 and
from the guest.

Does it work if you use less memory? Say mem=2G?

> 10.06.2014 10:56, Maxim Gordeev ÐÐÑÐÑ:
> > Hi!
> >
> > Thanks for your answer!
> >
> > I tried starting my VM with device_model_version = "qemu-xen.
> > VM is working, but I don`t see NVIDIA in list pci devices...
> >
> > This is output message of command "xl create:"
> >> Hi!
> >>
> >> Thanks for your answer!
> >>
> >> I tried starting my VM with device_model_version = "qemu-xen.
> >> VM is working, but I don`t see NVIDIA in list pci devices...
> >>
> >> This is output message of command xl create:
> > dmesg:
> >> [81234.316270] xen_pciback: vpci: 0000:03:00.0: assign to virtual slot 0
> > It is All.
> >
> > Maybe I will try use this parameter in Xen 4.3?
> >
> > 09.06.2014 16:48, Gordan Bobic ÐÐÑÐÑ:
> >> Yes, I think so. I have a sneaky suspicion that qemu cannot handle
> >> BARs over a certain size. Have you tried with
> >> device_model_version = "qemu-xen"
> >> instead of qemu-xen-traditional ?
> >>
> >> On 06/09/2014 01:42 PM, Maxim Gordeev wrote:
> >>> Do you understand me? :)
> >>>
> >>> I can give you logs!
> >>> 09.06.2014 16:40, Maxim Gordeev ÐÐÑÐÑ:
> >>>> no, no.
> >>>> With 4.3 is bad work! With 4.4 is do not starting.
> >>>> I see into lspci: BAR1 is not possible assignment. With 4.3 can not
> >>>> maping BAR1.
> >>>> Thanks!
> >>>>
> >>>> 09.06.2014 16:29, Gordan Bobic ÐÐÑÐÑ:
> >>>>> On 06/09/2014 01:21 PM, Maxim Gordeev wrote:
> >>>>>> 16Gb this is BAR1.
> >>>>>> This is example my VM config:
> >>>>>>> /builder='hvm'//
> >>>>>>> //memory = 16000//
> >>>>>>> //name = "xen-hvm-cheap1"//
> >>>>>>> //vcpus=8//
> >>>>>>> //acpi=0//
> >>>>>>> //disk = [ //
> >>>>>>> //// 'file:/opt/VM/cheap1_glinux-1.img,hda,w',//
> >>>>>>> // 'file:/opt/VM/cheap1_glinux-2.img,hdb,w'//
> >>>>>>> // ]//
> >>>>>>> // xen_platform_pci = 1//
> >>>>>>> //on_poweroff = 'destroy'//
> >>>>>>> //on_reboot = 'restart'//
> >>>>>>> //on_crash = 'restart'//
> >>>>>>> //device_model_version = 'qemu-xen-traditional'//
> >>>>>>> //boot="c"//
> >>>>>>> //vnc=1//
> >>>>>>> //vnclisten="0.0.0.0"//
> >>>>>>> //vncdisplay=1//
> >>>>>>> //vncunused=1//
> >>>>>>> //vncpasswd=''//
> >>>>>>> //stdvga=0//
> >>>>>>> //serial='pty'//
> >>>>>>> //monitor=1//
> >>>>>>> //gfx_passthru=0//
> >>>>>>> //pci=['03:00.0' ] /
> >>>>>> Xen 4.3 start this VM, but Xen 4.4 is not starting VM.
> >>>>> So you are saying that this works fine with 4.3 but breaks with 4.4?
> >>>>>
> >>>>> Gordan
> >>>>>
> >>>>> _______________________________________________
> >>>>> Xen-devel mailing list
> >>>>> Xen-devel@xxxxxxxxxxxxx
> >>>>> http://lists.xen.org/xen-devel
> >>
> >> _______________________________________________
> >> Xen-devel mailing list
> >> Xen-devel@xxxxxxxxxxxxx
> >> http://lists.xen.org/xen-devel
> 
> 
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