Including VFIO in the kernel would be great! This would resolve all kinds of pass-through crashes.
Currently, the only way to do this is to hope that the USB controller behaves properly during reclamation by the kernel (most of them do not), which varies wildly by vendor. In my case, it gets as bad as having the whole system hang on shutdown due to a crash in the xhci_hcd driver. The ideal solution would be the ability to pass the device through directly to a VM guest, so that no cooperation by the controller is required. -- 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: Triaged Status in linux source package in Cosmic: Triaged 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
