Details from working guest 18.04 $ lsmod Module Size Used by isofs 45056 0 nls_iso8859_1 16384 1 kvm_intel 217088 0 kvm 614400 1 kvm_intel irqbypass 16384 1 kvm crct10dif_pclmul 16384 0 crc32_pclmul 16384 0 ghash_clmulni_intel 16384 0 input_leds 16384 0 joydev 24576 0 serio_raw 16384 0 sch_fq_codel 20480 6 ib_iser 49152 0 rdma_cm 61440 1 ib_iser iw_cm 45056 1 rdma_cm ib_cm 53248 1 rdma_cm ib_core 221184 4 rdma_cm,iw_cm,ib_iser,ib_cm iscsi_tcp 20480 0 libiscsi_tcp 20480 1 iscsi_tcp libiscsi 53248 3 libiscsi_tcp,iscsi_tcp,ib_iser scsi_transport_iscsi 98304 3 iscsi_tcp,ib_iser,libiscsi ip_tables 28672 0 x_tables 40960 1 ip_tables autofs4 40960 2 btrfs 1150976 0 zstd_compress 163840 1 btrfs raid10 53248 0 raid456 147456 0 async_raid6_recov 20480 1 raid456 async_memcpy 16384 2 raid456,async_raid6_recov async_pq 16384 2 raid456,async_raid6_recov async_xor 16384 3 async_pq,raid456,async_raid6_recov async_tx 16384 5 async_pq,async_memcpy,async_xor,raid456,async_raid6_recov xor 24576 2 async_xor,btrfs raid6_pq 114688 4 async_pq,btrfs,raid456,async_raid6_recov libcrc32c 16384 1 raid456 raid1 40960 0 raid0 20480 0 multipath 16384 0 linear 16384 0 hid_generic 16384 0 usbhid 49152 0 hid 118784 2 usbhid,hid_generic virtio_net 49152 0 aesni_intel 188416 0 aes_x86_64 20480 1 aesni_intel crypto_simd 16384 1 aesni_intel cryptd 24576 3 crypto_simd,ghash_clmulni_intel,aesni_intel glue_helper 16384 1 aesni_intel virtio_blk 20480 3 psmouse 151552 0 floppy 77824 0 i40evf 98304 0
$ lspci -v 00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02) Subsystem: Red Hat, Inc. Qemu virtual machine Flags: fast devsel 00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] Subsystem: Red Hat, Inc. Qemu virtual machine Flags: medium devsel 00:01.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] (prog-if 80 [ISA Compatibility mode-only controller, supports bus mastering]) Subsystem: Red Hat, Inc. Qemu virtual machine Flags: bus master, medium devsel, latency 0 [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8] [virtual] Memory at 000003f0 (type 3, non-prefetchable) [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8] [virtual] Memory at 00000370 (type 3, non-prefetchable) I/O ports at c0e0 [size=16] Kernel driver in use: ata_piix 00:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 03) Subsystem: Red Hat, Inc. Qemu virtual machine Flags: medium devsel, IRQ 9 00:02.0 VGA compatible controller: Cirrus Logic GD 5446 (prog-if 00 [VGA controller]) Subsystem: Red Hat, Inc. QEMU Virtual Machine Flags: fast devsel Memory at fc000000 (32-bit, prefetchable) [size=32M] Memory at feb90000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at 000c0000 [disabled] [size=128K] Kernel modules: cirrusfb 00:03.0 Ethernet controller: Red Hat, Inc. Virtio network device Subsystem: Red Hat, Inc. Virtio network device Physical Slot: 3 Flags: bus master, fast devsel, latency 0, IRQ 11 I/O ports at c040 [size=32] Memory at feb91000 (32-bit, non-prefetchable) [size=4K] Memory at fe010000 (64-bit, prefetchable) [size=16K] Expansion ROM at feb00000 [disabled] [size=512K] Capabilities: [98] MSI-X: Enable+ Count=3 Masked- Capabilities: [84] Vendor Specific Information: VirtIO: <unknown> Capabilities: [70] Vendor Specific Information: VirtIO: Notify Capabilities: [60] Vendor Specific Information: VirtIO: DeviceCfg Capabilities: [50] Vendor Specific Information: VirtIO: ISR Capabilities: [40] Vendor Specific Information: VirtIO: CommonCfg Kernel driver in use: virtio-pci 00:04.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03) (prog-if 00 [UHCI]) Subsystem: Red Hat, Inc. QEMU Virtual Machine Flags: bus master, fast devsel, latency 0, IRQ 11 I/O ports at c060 [size=32] Kernel driver in use: uhci_hcd 00:04.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03) (prog-if 00 [UHCI]) Subsystem: Red Hat, Inc. QEMU Virtual Machine Flags: bus master, fast devsel, latency 0, IRQ 10 I/O ports at c080 [size=32] Kernel driver in use: uhci_hcd 00:04.2 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03) (prog-if 00 [UHCI]) Subsystem: Red Hat, Inc. QEMU Virtual Machine Flags: bus master, fast devsel, latency 0, IRQ 10 I/O ports at c0a0 [size=32] Kernel driver in use: uhci_hcd 00:04.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03) (prog-if 20 [EHCI]) Subsystem: Red Hat, Inc. QEMU Virtual Machine Flags: bus master, fast devsel, latency 0, IRQ 11 Memory at feb92000 (32-bit, non-prefetchable) [size=4K] Kernel driver in use: ehci-pci 00:05.0 SCSI storage controller: Red Hat, Inc. Virtio block device Subsystem: Red Hat, Inc. Virtio block device Physical Slot: 5 Flags: bus master, fast devsel, latency 0, IRQ 10 I/O ports at c000 [size=64] Memory at feb93000 (32-bit, non-prefetchable) [size=4K] Memory at fe014000 (64-bit, prefetchable) [size=16K] Capabilities: [98] MSI-X: Enable+ Count=2 Masked- Capabilities: [84] Vendor Specific Information: VirtIO: <unknown> Capabilities: [70] Vendor Specific Information: VirtIO: Notify Capabilities: [60] Vendor Specific Information: VirtIO: DeviceCfg Capabilities: [50] Vendor Specific Information: VirtIO: ISR Capabilities: [40] Vendor Specific Information: VirtIO: CommonCfg Kernel driver in use: virtio-pci 00:06.0 Ethernet controller: Intel Corporation Ethernet Virtual Function 700 Series (rev 02) Subsystem: Intel Corporation Ethernet Virtual Function 700 Series Physical Slot: 6 Flags: bus master, fast devsel, latency 0 Memory at fe000000 (64-bit, prefetchable) [size=64K] Memory at fe018000 (64-bit, prefetchable) [size=16K] Capabilities: [70] MSI-X: Enable+ Count=5 Masked- Capabilities: [a0] Express Endpoint, MSI 00 Kernel driver in use: i40evf Kernel modules: i40evf 00:07.0 Unclassified device [00ff]: Red Hat, Inc. Virtio memory balloon Subsystem: Red Hat, Inc. Virtio memory balloon Physical Slot: 7 Flags: bus master, fast devsel, latency 0, IRQ 11 I/O ports at c0c0 [size=32] Memory at fe01c000 (64-bit, prefetchable) [size=16K] Capabilities: [84] Vendor Specific Information: VirtIO: <unknown> Capabilities: [70] Vendor Specific Information: VirtIO: Notify Capabilities: [60] Vendor Specific Information: VirtIO: DeviceCfg Capabilities: [50] Vendor Specific Information: VirtIO: ISR Capabilities: [40] Vendor Specific Information: VirtIO: CommonCfg Kernel driver in use: virtio-pci $ modinfo i40evf filename: /lib/modules/4.15.0-117-generic/kernel/drivers/net/ethernet/intel/i40evf/i40evf.ko version: 3.0.1-k license: GPL description: Intel(R) XL710 X710 Virtual Function Network Driver author: Intel Corporation, <linux.n...@intel.com> srcversion: FE6D734AA159CB682BFE70E alias: pci:v00008086d00001889sv*sd*bc*sc*i* alias: pci:v00008086d000037CDsv*sd*bc*sc*i* alias: pci:v00008086d00001571sv*sd*bc*sc*i* alias: pci:v00008086d0000154Csv*sd*bc*sc*i* depends: retpoline: Y intree: Y name: i40evf vermagic: 4.15.0-117-generic SMP mod_unload signat: PKCS#7 signer: sig_key: sig_hashalgo: md4 $ dpkg -S /lib/modules/4.15.0-117-generic/kernel/drivers/net/ethernet/intel/i40evf/i40evf.ko Linux-modules-4.15.0-117-generic: /lib/modules/4.15.0-117-generic/kernel/drivers/net/ethernet/intel/i40evf/i40evf.ko ----------------------------------------------------------------------------- Reduced kernal enviroment 20.04 $ modinfo i40evf modinfo: ERROR: Module i40evf not found. /lib/modules# ls 5.4.0-1023-kvm 5.4.0-47-generic the generic module is installed but it seems the kvm one was not removed -- 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/1892422 Title: Pci passthrough interface not showing up in Ubuntu 20.04 but does show in 18.04 Status in linux package in Ubuntu: Confirmed Status in qemu package in Ubuntu: Confirmed Bug description: After setting up pci pass through for a virtual function it did not show up as an interface in Ubuntu 20.04, it did however show up as a PCI device. After reverting back to 18.04 with exactly the same configuration the interface showed up as expected. Bellow is the configuration and output for both 18.04 and 20.04. virt-install --import --connect qemu:///system --name emsk8sm1 --ram 8192 --disk pool/emsk8sm1/emsk8sm1.img,format=img,bus=virtio --disk cidata.img,device=cdrom,format=img --vcpus 4 --cpu host --os-type linux --os-variant ubuntu18.04 --network bridge=br0,model=virtio,virtualport_type=openvswitch,mac=52:54:00:8a:9c:ea --hostdev 3b:02.5 --console pty,target_type=serial --graphics type=vnc,listen=0.0.0.0 --noautoconsole --autostart -v Configuration of 18.04 where the passthrough works Version Linux emsk8sm1 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux virsh dumpxml emsk8sm1 <hostdev mode='subsystem' type='pci' managed='yes'> <driver name='vfio'/> <source> <address domain='0x0000' bus='0x3b' slot='0x02' function='0x5'/> </source> <alias name='hostdev0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> </hostdev> lspci | grep Ethernet 00:03.0 Ethernet controller: Red Hat, Inc. Virtio network device 00:06.0 Ethernet controller: Intel Corporation Ethernet Virtual Function 700 Series (rev 02) <--- Pass through interface ip link show [interface shows inside of vm ens6] 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000 link/ether 52:54:00:8a:9c:ea brd ff:ff:ff:ff:ff:ff 3: ens6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000 link/ether ea:99:ea:36:3e:63 brd ff:ff:ff:ff:ff:ff Configuration of 20.04 where the VF shows as a PCI device but does not show as an interface Version Linux emsk8sm1 5.4.0-1020-kvm #20-Ubuntu SMP Fri Jul 10 05:03:04 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux virsh dumpxml emsk8sm1 <hostdev mode='subsystem' type='pci' managed='yes'> <driver name='vfio'/> <source> <address domain='0x0000' bus='0x3b' slot='0x02' function='0x5'/> </source> <alias name='hostdev0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> </hostdev> lspci | grep Ethernet 00:03.0 Ethernet controller: Red Hat, Inc. Virtio network device 00:06.0 Ethernet controller: Intel Corporation Ethernet Virtual Function 700 Series (rev 02) <--- Pass through interface ip link show [ens 6 does not show as an interface} 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000 link/ether 52:54:00:8a:9c:ea brd ff:ff:ff:ff:ff:ff 3: tunl0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ipip 0.0.0.0 brd 0.0.0.0 4: sit0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/sit 0.0.0.0 brd 0.0.0.0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1892422/+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