[vfio-users] IGD Passthrough - does not work with intel kabylake

[nicolas prochazka]

Hello,
We are using vfio igd passthrough  :
Win10 | Linux ubuntu : broadwell IGD / skylake IGD   ( intel nuc plateforme
)
without problem, igd is working well .


Now with the new intel nuc ( kabylake / nuc7i) ,
Neither windows nor linux  recognize intel graphic card.
Under windows, drivers is on error, and screen is divide into 3 screens ,
as under Linux.

On linux :

neo at ubuntu:~$ lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma]
[8086:1237] (rev 02)
00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA
[Natoma/Triton II] [8086:7000]
00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE
[Natoma/Triton II] [8086:7010]
00:01.2 USB controller [0c03]: Intel Corporation 82371SB PIIX3 USB
[Natoma/Triton II] [8086:7020] (rev 01)
00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI
[8086:7113] (rev 03)
00:02.0 VGA compatible controller [0300]: Intel Corporation Device
[8086:5916] (rev 02)
00:03.0 Ethernet controller [0200]: Intel Corporation 82540EM Gigabit
Ethernet Controller [8086:100e] (rev 03)
00:04.0 Communication controller [0780]: Red Hat, Inc Virtio console
[1af4:1003]
00:05.0 USB controller [0c03]: Intel Corporation Sunrise Point-LP USB 3.0
xHCI Controller [8086:9d2f] (rev 21)
00:06.0 Multimedia audio controller [0401]: Intel Corporation Device
[8086:9d71] (rev 21)
00:07.0 Ethernet controller [0200]: Intel Corporation 82540EM Gigabit
Ethernet Controller [8086:100e] (rev 03)
00:1f.0 ISA bridge [0601]: Intel Corporation Device [8086:9d4e] (rev 21)
neo at ubuntu:~$



neo at ubuntu:~$ uname -a
Linux ubuntu 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016
x86_64 x86_64 x86_64 GNU/Linux


Vm is starting as :
( it is important to notice that we are exactly in same condition, except
broadwell/skylake/kabylake )

/usr/bin/qemu-system-x86_64.igd -name guest=ubuntu,debug-threads=on -S
-object
secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-2-ubuntu/master-key.aes
-machine pc-i440fx-2.7,accel=kvm,usb=off -cpu
Broadwell-noTSX,hv_time,hv_relaxed,hv_vapic,hv_spinlocks=0x1fff -bios
/usr/share/seabios/bios.bin -m 2721 -mem-prealloc -mem-path
/dev/hugepages/libvirt/qemu -realtime mlock=off -smp
2,sockets=1,cores=2,threads=1 -uuid 2c5aec33-ae0c-3870-babf-d9e26b640248
-nographic -no-user-config -nodefaults -chardev
socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-2-ubuntu/monitor.sock,server,nowait
-mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
-no-hpet -no-shutdown -global PIIX4_PM.disable_s3=1 -global
PIIX4_PM.disable_s4=1 -boot strict=on -device
piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device
virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x4 -drive
file=nbd:unix:/tmp/ubuntu.ctl,format=raw,if=none,id=drive-ide0-0-0 -device
ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 -drive
file=nbd:unix:/tmp/swap.ctl,format=raw,if=none,id=drive-ide0-0-1 -device
ide-hd,bus=ide.0,unit=1,drive=drive-ide0-0-1,id=ide0-0-1 -netdev
tap,fd=22,id=hostnet0 -device
e1000,netdev=hostnet0,id=net0,mac=ac:de:50:68:49:75,bus=pci.0,addr=0x3
-chardev
socket,id=charchannel0,path=/var/lib/libvirt/qemu/channel/target/domain-2-ubuntu/org.qemu.guest_agent.0,server,nowait
-device
virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0
-device vfio-pci,host=00:02.0,id=hostdev0,bus=pci.0,addr=0x2 -device
vfio-pci,host=00:14.0,id=hostdev1,bus=pci.0,addr=0x5 -device
vfio-pci,host=00:1f.3,id=hostdev2,bus=pci.0,addr=0x6 -netdev
user,id=user.0,restrict=on,hostfwd=tcp:127.0.0.1:5901-:5900 -device
e1000,netdev=user.0 -msg timestamp=on


Any suggestions,
Regards,
Nicolas Prochazka
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