I think I made myself misunderstood, 1 - Host is Linux kernel 4.9.7 .
Linux ubuntu 4.4 is the guest. The patch in 4.11 is relevant to guest machine or host machine ? 2 - yes. Regards, Nicolas 2017-02-02 14:41 GMT+01:00 Manuel Ullmann <ullman.al...@posteo.de>: > Hi, > > in theory kernel 4.4 does not support vfio-igd yet, but since it works > for Broadwell/Skylake, Ubuntu seems to have backported the patches. > > There was a fix released for Kabylake, that will be introduced in kernel > v4.11. Interesting by the way, that it works to some extent. I’ve seen > that screen division by three also on a bare-metal Win10 machine, but I > don’t know, what hardware that had. Fixed it by rebooting into a Linux > Mint iso and subsequently rebooting back into Windows. So two questions: > > 1. Does the fix for Kabylake help, that will be > introduced in kernel 4.11? > https://lkml.org/lkml/2017/1/19/458 > 2. Is this reproducible on a cold reboot? > > You will most likely require the Kabylake fix, but I also would be > interested, whether some tries might have just messed up your GPU > resverved RAM introducing the screen division. I’d assume, that even > when the screen operates normally on cold reboot, the card usage > might be limited due to the missing patch. > > Best regards, > Manuel > > 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@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@ubuntu:~$ > > > > neo@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 > > > > > > _______________________________________________ > > vfio-users mailing list > > vfio-users@redhat.com > > https://www.redhat.com/mailman/listinfo/vfio-users >
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