It does, but not working in 100% of cases, for instance when occupied by USB devices that are actively used by certain applications it was failing for me occasionally.
The only proper and clean solution is to be able to force the device to use vfio-pci, which is impossible with the kernel Ubuntu ships right now, hence this request to change kernel configuration. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1770845 Title: Make vfio-pci built-in or xhci_hcd optional Status in linux package in Ubuntu: Opinion Status in linux source package in Cosmic: Opinion Bug description: Because of nazar-pc@nazar-pc ~> cat '/boot/config-4.15.0-21-generic' | grep CONFIG_USB_XHCI_HCD CONFIG_USB_XHCI_HCD=y Following doesn't work: nazar-pc@nazar-pc ~> cat /etc/modprobe.d/gpu-passthrough.conf options vfio-pci ids=10de:1b06,10de:10ef,1b21:2142 softdep nouveau pre: vfio-pci softdep xhci_hcd pre: vfio-pci GPU is fine (first 2 IDs), but USB controller is always occupied by xhci_hcd and I can't change that while xhci_hcd is built-in. I'd like you to resolve this issue by either embedding vfio-pci module too (prefered solution) or making xhci_hcd optional. There are some discussions withot clean solution online like this: https://www.reddit.com/r/VFIO/comments/4o6wla/cant_get_vfiopci_to_bind_to_usb_30_card_at_boot/ ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: linux-image-4.15.0-21-generic 4.15.0-21.22 ProcVersionSignature: Ubuntu 4.15.0-21.22-generic 4.15.17 Uname: Linux 4.15.0-21-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-21-generic. ApportVersion: 2.20.10-0ubuntu2 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 1: S51 [SB Omni Surround 5.1], device 0: USB Audio [USB Audio] Subdevices: 0/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC1D0c: nazar-pc 2226 F...m pulseaudio /dev/snd/pcmC1D0p: nazar-pc 2226 F...m pulseaudio /dev/snd/controlC1: nazar-pc 2226 F.... pulseaudio nazar-pc 2267 F.... volumeicon Card1.Amixer.info: Card hw:1 'S51'/'Creative Technology Ltd SB Omni Surround 5.1 at usb-0000:00:14.0-9.2, full spee' Mixer name : 'USB Mixer' Components : 'USB041e:322c' Controls : 12 Simple ctrls : 5 CurrentDesktop: Custom Date: Sat May 12 16:44:11 2018 IwConfig: Error: [Errno 2] Немає такого файла або каталогу: 'iwconfig': 'iwconfig' MachineType: Micro-Star International Co., Ltd. MS-7B45 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/root/boot/vmlinuz-4.15.0-21-generic root=UUID=5170aca4-061a-4c6c-ab00-bd7fc8ae6030 ro rootflags=subvol=root nosplash intel_pstate=disable scsi_mod.use_blk_mq=1 intel_iommu=on RelatedPackageVersions: linux-restricted-modules-4.15.0-21-generic N/A linux-backports-modules-4.15.0-21-generic N/A linux-firmware 1.173 RfKill: Error: [Errno 2] Немає такого файла або каталогу: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/29/2018 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: A.51 dmi.board.asset.tag: Default string dmi.board.name: Z370 GAMING PRO CARBON (MS-7B45) dmi.board.vendor: Micro-Star International Co., Ltd. dmi.board.version: 2.0 dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Micro-Star International Co., Ltd. dmi.chassis.version: 2.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrA.51:bd03/29/2018:svnMicro-StarInternationalCo.,Ltd.:pnMS-7B45:pvr2.0:rvnMicro-StarInternationalCo.,Ltd.:rnZ370GAMINGPROCARBON(MS-7B45):rvr2.0:cvnMicro-StarInternationalCo.,Ltd.:ct3:cvr2.0: dmi.product.family: Default string dmi.product.name: MS-7B45 dmi.product.version: 2.0 dmi.sys.vendor: Micro-Star International Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1770845/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
