Re: [ovirt-users] How to passthrough GPU to windows guest

Thanks for your suggestions, I have tried that but problems still exist. Yes, I used Nvidia GTX 750Ti. I found the qemu's arguments have changed. 7210 ? SLl 0:31 /usr/libexec/qemu-kvm -name guest=win7_1,debug-threads=on -S -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-16-win7_1/master-key.aes -machine pc-i440fx-rhel7.3.0,accel=kvm,usb=off -cpu Broadwell,+rtm,+hle,hv_time,hv_relaxed,hv_vapic,hv_spinlocks=0x1fff,hv_vendor_id=whatever,kvm=off -m size=1048576k,slots=16,maxmem=4194304k -realtime mlock=off -smp 1,maxcpus=16,sockets=16,cores=1,threads=1 -numa node,nodeid=0,cpus=0,mem=1024 -uuid 1fba3bd6-0659-4463-92ea-8efa43411082 -smbios type=1,manufacturer=oVirt,product=oVirt Node,version=7-3.1611.el7.centos,serial=031B021C-040D-050E-D806-900700080009,uuid=1fba3bd6-0659-4463-92ea-8efa43411082 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-16-win7_1/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=2017-03-28T08:54:41,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-hpet -no-shutdown -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x8 -device virtio-serial-pci,id=virtio-serial0,max_ports=16,bus=pci.0,addr=0x4 -drive if=none,id=drive-ide0-1-0,readonly=on -device ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -drive file=/rhev/data-center/00000001-0001-0001-0001-000000000311/c053a0c0-45ad-4f7a-b9ce-c1ac90c900d4/images/082d4d4c-3aae-4369-9cbb-e6a7b31c3204/63da97f3-7b1f-406b-905f-b12eeb96d55f,format=raw,if=none,id=drive-scsi0-0-0-0,serial=082d4d4c-3aae-4369-9cbb-e6a7b31c3204,cache=none,werror=stop,rerror=stop,aio=threads -device scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0,bootindex=1 -netdev tap,fd=33,id=hostnet0,vhost=on,vhostfd=35 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=00:1a:4a:16:01:51,bus=pci.0,addr=0x3 -chardev socket,id=charchannel0,path=/var/lib/libvirt/qemu/channels/1fba3bd6-0659-4463-92ea-8efa43411082.com.redhat.rhevm.vdsm,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.rhevm.vdsm -chardev socket,id=charchannel1,path=/var/lib/libvirt/qemu/channels/1fba3bd6-0659-4463-92ea-8efa43411082.org.qemu.guest_agent.0,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=org.qemu.guest_agent.0 -device usb-tablet,id=input0,bus=usb.0,port=1 -vnc 192.168.120.235:0,password -k en-us -device qxl-vga,id=video0,ram_size=67108864,vram_size=8388608,vram64_size_mb=0,vgamem_mb=16,bus=pci.0,addr=0x2 -device vfio-pci,host=01:00.0,id=hostdev0,bus=pci.0,addr=0x6 -device vfio-pci,host=01:00.1,id=hostdev1,bus=pci.0,addr=0x7 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 -object rng-random,id=objrng0,filename=/dev/urandom -device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.0,addr=0x9 -msg timestamp=on Does ovirt use vga passthrough or gpu passthrough? Should I install EDK2 OVMF?

Thanks in advance. 2017-03-28 15:17 GMT+08:00 Martin Polednik <mpolednik(a)redhat.com&gt;: > On 28/03/17 02:12 +0800, yimao wrote: >> >> Hi, >> >> I'm trying to passthrough gpu card to windows 7 guest, but I got the >> error code 43. >> I use ovirt node: ovirt-node-ng-installer-ovirt-4.1-2017032304.iso and >> ovirt-engine-appliance-4.1-20170322.1.el7.centos.noarch.rpm >> I have added options "intel_iommu=on rdblacklist=nouveau >> pci-stub.ids=10de:1380,10de:0fbc" to the grub.conf and attached these >> devices to the guest. After I have installed the gpu's driver, I got >> the error code 43. >> Did I miss something? Any pointers or suggestions would be greatly >> appreciated. > > > You are most likely using consumer grade GPU that errors out in > Windows if it's running under virtualized environment. You could try > using the following hook (make sure it's in > /usr/libexec/vdsm/hooks/before_vm_start and it's executable bit is set > (chmod +x ...)). > > Just copy paste the following block to a bash and try to start the VM > again. > > cd /usr/libexec/vdsm/hooks/before_vm_start > cat << EOF >> 99_mask_kvm > #!/usr/bin/python2 > > import hooking > domxml = hooking.read_domxml() > > hyperv = domxml.getElementsByTagName('hyperv')[0] > smm = domxml.createElement('vendor_id') > smm.setAttribute('state', 'on') > smm.setAttribute('value', 'whatever') > hyperv.appendChild(smm) > > features = domxml.getElementsByTagName('features')[0] > kvm = domxml.createElement('kvm') > hidden = domxml.createElement('hidden') > hidden.setAttribute('state', 'on') > kvm.appendChild(hidden) > features.appendChild(kvm) > > hooking.write_domxml(domxml) > EOF > chmod +x 99_mask_kvm > > > >> Thanks in advance. >> Yiimao Yang.