hi, === question === with the setup described below, i can't pass the graphics adapter into a KVM guest as described below. is the BAR stuff in the listing an error i wuld have to fix in order to get my eGPU running? if so, what could i do about it? i've seen that the laptop will hang on boot if the eGPU is powered on system startup. i can see the adapter after hotplugging it using lspci and i never see an image on the external display. thanks in advance, joachim schiele my config is this: sudo qemu-system-x86_64 -enable-kvm \ -m 8192 \ -M q35 \ -cpu host,kvm=off \ -smp 4,sockets=1,cores=4,threads=1 \ -vga none \ -vnc none \ -device ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1 \ -device vfio-pci,host=04:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on \ -device vfio-pci,host=04:00.1,bus=root.1,addr=00.1 \ -drive file=/home/joachim/en_windows_7_professional_x64_dvd_X15-65805.iso,id=isocd -device ide-cd,bus=ide.1,drive=isocd \ -drive file=/var/lib/libvirt/images/win7.qcow2,format=qcow2,id=hdd -device ide-hd,bus=ide.0,drive=hdd \ -bios /usr/share/seabios/bios.bin \ -soundhw ac97 === when hotplugging the eGPU === i want to use a Nvidia GTX 660 TI as an eGPU using PE4H and when i hotplug the ePCI adapter i get this log on a 3.18 ubuntu kernel: [ 960.145002] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=none,decodes=io+mem:owns=none [ 966.574858] pci 0000:04:00.0: [10de:1183] type 00 class 0x030000 [ 966.574892] pci 0000:04:00.0: reg 0x10: [mem 0x00000000-0x00ffffff] [ 966.574921] pci 0000:04:00.0: reg 0x14: [mem 0x00000000-0x07ffffff 64bit pref] [ 966.574950] pci 0000:04:00.0: reg 0x1c: [mem 0x00000000-0x01ffffff 64bit pref] [ 966.574963] pci 0000:04:00.0: reg 0x24: [io 0x0000-0x007f] [ 966.574974] pci 0000:04:00.0: reg 0x30: [mem 0x00000000-0x0007ffff pref] [ 966.575224] vgaarb: device added: PCI:0000:04:00.0,decodes=io+mem,owns=none,locks=none [ 966.575227] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=none:owns=none [ 966.575327] pci 0000:04:00.1: [10de:0e0a] type 00 class 0x040300 [ 966.575356] pci 0000:04:00.1: reg 0x10: [mem 0x00000000-0x00003fff] [ 966.998345] pci 0000:04:00.0: BAR 1: no space for [mem size 0x08000000 64bit pref] [ 966.998350] pci 0000:04:00.0: BAR 1: failed to assign [mem size 0x08000000 64bit pref] [ 966.998353] pci 0000:04:00.0: BAR 3: no space for [mem size 0x02000000 64bit pref] [ 966.998355] pci 0000:04:00.0: BAR 3: failed to assign [mem size 0x02000000 64bit pref] [ 966.998357] pci 0000:04:00.0: BAR 0: no space for [mem size 0x01000000] [ 966.998358] pci 0000:04:00.0: BAR 0: failed to assign [mem size 0x01000000] [ 966.998360] pci 0000:04:00.0: BAR 6: assigned [mem 0xf1400000-0xf147ffff pref] [ 966.998363] pci 0000:04:00.1: BAR 0: assigned [mem 0xf1480000-0xf1483fff] [ 966.998369] pci 0000:04:00.1: BAR 0: error updating (0xf1480000 != 0xffffffff) [ 966.998373] pci 0000:04:00.0: BAR 5: assigned [io 0x3000-0x307f] [ 966.998379] pci 0000:04:00.0: BAR 5: error updating (0x003001 != 0xffffffff) [ 966.998392] pcieport 0000:00:1c.2: Max Payload Size set to 128/ 128 (was 128), Max Read Rq 128 [ 966.998403] pci 0000:04:00.0: Max Payload Size set to 16384/ 256 (was 16384), Max Read Rq 16384 [ 966.998414] pci 0000:04:00.1: Max Payload Size set to 16384/ 256 (was 16384), Max Read Rq 16384 [ 966.998472] pci-stub 0000:04:00.0: claimed by stub [ 966.998495] pci-stub 0000:04:00.1: claimed by stub [ 967.099040] pcieport 0000:00:1c.2: Max Payload Size set to 128/ 128 (was 128), Max Read Rq 128 [ 967.099059] pci-stub 0000:04:00.0: Max Payload Size set to 128/ 256 (was 128), Max Read Rq 512 [ 967.099075] pci-stub 0000:04:00.1: Max Payload Size set to 128/ 256 (was 128), Max Read Rq 512 [ 7735.938854] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=none,decodes=io+mem:owns=none more at: https://lastlog.de/wiki/index.php/T530%2BNvida_GTX_660_TI_eGPU_via_PE4H i derived the scripts i'm using from this guide: http://www.pugetsystems.com/labs/articles/Multiheaded-NVIDIA-Gaming-using-Ubuntu-14-04-KVM-585/ -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
