Hello,Po-Hsu Lin $ uname -r 5.11.0-27-generic
$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.04.2 LTS Release: 20.04 Codename: focal $ sudo vi /etc/modules vfio vfio_iommu_type1 vfio_pci vfio_virqfd kvm kvm_intel :wq $ lsmod | grep vfio empty... $ lsmod | grep kvm kvm_intel 294912 0 kvm 819200 1 kvm_intel $ modinfo vfio name: vfio filename: (builtin) softdep: post: vfio_iommu_type1 vfio_iommu_spapr_tce alias: devname:vfio/vfio alias: char-major-10-196 description: VFIO - User Level meta-driver author: Alex Williamson <alex.william...@redhat.com> license: GPL v2 file: drivers/vfio/vfio version: 0.3 parm: enable_unsafe_noiommu_mode:Enable UNSAFE, no-IOMMU mode. This mode provides no device isolation, no DMA translation, no host kernel protection, cannot be used for device assignment to virtual machines, requires RAWIO permissions, and will taint the kernel. If you do not know what this is for, step away. (default: false) (bool) $ modinfo vfio_iommu_type1 name: vfio_iommu_type1 filename: (builtin) description: Type1 IOMMU driver for VFIO author: Alex Williamson <alex.william...@redhat.com> license: GPL v2 file: drivers/vfio/vfio_iommu_type1 version: 0.2 parm: allow_unsafe_interrupts:Enable VFIO IOMMU support for on platforms without interrupt remapping support. (bool) parm: disable_hugepages:Disable VFIO IOMMU support for IOMMU hugepages. (bool) parm: dma_entry_limit:Maximum number of user DMA mappings per container (65535). (uint) $ modinfo vfio_pci name: vfio_pci filename: (builtin) description: VFIO PCI - User Level meta-driver author: Alex Williamson <alex.william...@redhat.com> license: GPL v2 file: drivers/vfio/pci/vfio-pci version: 0.2 parm: ids:Initial PCI IDs to add to the vfio driver, format is "vendor:device[:subvendor[:subdevice[:class[:class_mask]]]]" and multiple comma separated entries can be specified (string) parm: nointxmask:Disable support for PCI 2.3 style INTx masking. If this resolves problems for specific devices, report lspci -vvvxxx to linux-...@vger.kernel.org so the device can be fixed automatically via the broken_intx_masking flag. (bool) parm: disable_vga:Disable VGA resource access through vfio-pci (bool) parm: disable_idle_d3:Disable using the PCI D3 low power state for idle, unused devices (bool) parm: enable_sriov:Enable support for SR-IOV configuration. Enabling SR-IOV on a PF typically requires support of the userspace PF driver, enabling VFs without such support may result in non-functional VFs or PF. (bool) parm: disable_denylist:Disable use of device denylist. Disabling the denylist allows binding to devices with known errata that may lead to exploitable stability or security issues when accessed by untrusted users. (bool) $ modinfo vfio_virqfd name: vfio_virqfd filename: (builtin) description: IRQFD support for VFIO bus drivers author: Alex Williamson <alex.william...@redhat.com> license: GPL v2 file: drivers/vfio/vfio_virqfd version: 0.1 Po-Hsu Lin Would you please fix this bug as well? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-hwe in Ubuntu. https://bugs.launchpad.net/bugs/1903612 Title: Can't Load vfio-pci Module on Ubuntu 18.04 HWE Kernel Status in kmod package in Ubuntu: Fix Released Status in linux-hwe package in Ubuntu: Confirmed Status in kmod source package in Bionic: Confirmed Status in linux-hwe source package in Bionic: Confirmed Bug description: Can't Load vfio-pci Module on Ubuntu 18.04 HWE Kernel ``` ubuntu@ubuntu-2:~$ modinfo vfio-pci modinfo: ERROR: Module vfio-pci not found. ubuntu@ubuntu-2:~$ uname -a Linux DL360G9-2 5.4.0-52-generic #57~18.04.1-Ubuntu SMP Thu Oct 15 14:04:49 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux ``` But Generic kernel is Working. ``` ubuntu@ubuntu-4:~$ modinfo vfio-pci filename: /lib/modules/4.15.0-122-generic/kernel/drivers/vfio/pci/vfio-pci.ko description: VFIO PCI - User Level meta-driver author: Alex Williamson <alex.william...@redhat.com> license: GPL v2 version: 0.2 srcversion: 1E92A800B94EAE7B392AD50 depends: vfio,irqbypass,vfio_virqfd retpoline: Y intree: Y name: vfio_pci vermagic: 4.15.0-122-generic SMP mod_unload signat: PKCS#7 signer: sig_key: sig_hashalgo: md4 parm: ids:Initial PCI IDs to add to the vfio driver, format is "vendor:device[:subvendor[:subdevice[:class[:class_mask]]]]" and multiple comma separated entries can be specified (string) parm: nointxmask:Disable support for PCI 2.3 style INTx masking. If this resolves problems for specific devices, report lspci -vvvxxx to linux-...@vger.kernel.org so the device can be fixed automatically via the broken_intx_masking flag. (bool) parm: disable_vga:Disable VGA resource access through vfio-pci (bool) parm: disable_idle_d3:Disable using the PCI D3 low power state for idle, unused devices (bool) ``` How to use vfio-pci module in HWE kernel? --- ProblemType: Bug AlsaVersion: Advanced Linux Sound Architecture Driver Version k5.4.0-52-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.16 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/midiC0D0', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2020-11-09 (0 days ago) InstallationMedia: Ubuntu-Server 18.04.5 LTS "Bionic Beaver" - Release amd64 (20200806.1) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' MachineType: VMware, Inc. VMware Virtual Platform Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 svgadrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-52-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro maybe-ubiquity ProcVersionSignature: Ubuntu 5.4.0-52.57~18.04.1-generic 5.4.65 RelatedPackageVersions: linux-restricted-modules-5.4.0-52-generic N/A linux-backports-modules-5.4.0-52-generic N/A linux-firmware 1.173.19 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' Tags: bionic uec-images Uname: Linux 5.4.0-52-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lxd plugdev sudo _MarkForUpload: True dmi.bios.date: 07/22/2020 dmi.bios.vendor: Phoenix Technologies LTD dmi.bios.version: 6.00 dmi.board.name: 440BX Desktop Reference Platform dmi.board.vendor: Intel Corporation dmi.board.version: None dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 1 dmi.chassis.vendor: No Enclosure dmi.chassis.version: N/A dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd07/22/2020:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A: dmi.product.name: VMware Virtual Platform dmi.product.version: None dmi.sys.vendor: VMware, Inc. 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