[vfio-users] vfio help needed (nvidia GTX 750 Ti persistent code 43)

[Blank Field]

Vga is broken on your platform so bios mode won't work.
Swap the card between slots, try appending a rom file: in other words,
there's not much left to try.
On Sep 17, 2015 2:40 AM, "Mogliii" <mogliii at gmx.net> wrote:

> Hello,
>
> Thank you for all the valuable input. However, the problem is not yet
> resolved.
>
> I specifically forced all the hyperv and clock options off so the nvidia
> driver hopefully does not recognize its in a vm. However, I get the same
> problem. Once the system recognized the graphics card and wants to activate
> the driver, the screen goes black and I have a loss of signal.
>
> My qemu command is (added newlines for better readability)
> # ps aux | grep kvm
>
> /usr/bin/qemu-system-x86_64 -name win81 -S
> -machine pc-i440fx-utopic,accel=kvm,usb=off
> -cpu host,kvm=off -bios /usr/share/ovmf/OVMF-pure-efi_win81.fd
> -m 4096 -realtime mlock=off -smp 2,sockets=2,cores=1,threads=1
> -uuid redacted -nographic -no-user-config -nodefaults
> -chardev
> socket,id=charmonitor,path=/var/lib/libvirt/qemu/win81.monitor,server,nowait
>
> -mon chardev=charmonitor,id=monitor,mode=control
> -rtc base=localtime,driftfix=slew -global kvm-pit.lost_tick_policy=discard
> -no-hpet -no-shutdown -global PIIX4_PM.disable_s3=1 -global
> PIIX4_PM.disable_s4=1
> -boot strict=on -device ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x6.0x7
> -device
> ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x6
>
> -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x6.0x1
> -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x6.0x2
> -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x5
> -drive
> file=/dev/main/Win7xen,if=none,id=drive-virtio-disk0,format=raw,cache=none,aio=native
> -device
> virtio-blk-pci,scsi=off,bus=pci.0,addr=0x8,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
>
> -netdev tap,fd=24,id=hostnet0,vhost=on,vhostfd=25
> -device
> virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:ab:b6:10,bus=pci.0,addr=0x4
>
> -device usb-host,hostbus=1,hostaddr=2,id=hostdev0
> -device usb-host,hostbus=5,hostaddr=2,id=hostdev1
> -device usb-host,hostbus=5,hostaddr=3,id=hostdev2
> -device vfio-pci,host=01:00.0,id=hostdev3,bus=pci.0,addr=0x3
> -device vfio-pci,host=01:00.1,id=hostdev4,bus=pci.0,addr=0x9
>  -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x7 -msg
> timestamp=on
>
> I can also confirm that the vfio-pci bind script is not necessary, and
> that removing "allow_unsafe_interrupts" did not change anything.
>
> I might later try switching the graphics card to bios mode.
>
> On 9/16/2015 11:31 PM, Francesco Dicarlo wrote:
>
> Are you sure your qemu supports Kim hidden tag? Try setting manually
> hyperv features in features tag off and also hypervclock to off...
>
> Posting ps aux | grep kvm will help us a lot to understand :-)
>
> <hyperv>
>>>>       <relaxed state='off'/>
>>>>       <vapic state='off'/>
>>>>       <spinlocks state='off'/>
>>>>     </hyperv>
>>>>   </features>
>>>>
>>>>   <clock offset='localtime'>
>>>>     <timer name='hypervclock' present='no'/>
>>>>     <timer name='rtc' tickpolicy='catchup'/>
>>>>     <timer name='pit' tickpolicy='delay'/>
>>>>     <timer name='hpet' present='no'/>
>>>>   </clock>
>>>>
>>>>
> Sent from my iPhone
>
>
>
> _______________________________________________
> vfio-users mailing list
> vfio-users at redhat.com
> https://www.redhat.com/mailman/listinfo/vfio-users
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/vfio-users/attachments/20150917/3a4b2135/attachment.htm>