I'm getting the above error after a fresh install of Fedora 31 on the same hardware Fedora 30 previously worked on. I've restored my libvirt and qemu installations from backups, and everything works except for VFIO passthrough. The only difference is that now I'm booting the host via EFI instead of BIOS (the Windows guest has always been UEFI) but I don't see why that should matter.
These are the relevant templates: $ cat vfio-grub GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="console" GRUB_CMDLINE_LINUX="modprobe.blacklist=nvidia modprobe.blacklist=nouveau rd.blacklist=nvidia rd.blacklist=nouveau intel_iommu=on,igfx_off iommu=pt rd.driver.pre=vfio-pci vconsole.font=latarcyrheb-sun16 $([ -x /usr/sbin/rhcrashkernel-param ] && /usr/sbin/rhcrashkernel-param || :) rhgb quiet resume=UUID=15d273c5-488c-48d6-a864-e11968ee970e audit=0 hugepages=4096" GRUB_DISABLE_RECOVERY="true" $ cat vfio.conf options vfio-pci ids=10de:1c81,10de:0fb9 $ cat local.conf force_drivers+="vfio vfio_iommu_type1 vfio_pci vfio_virqfd" I've done the following (same as always): $ sudo cp vfio.conf /etc/modprobe.d/vfio.conf $ sudo cp local.conf /etc/dracut.conf.d/local.conf $ sudo cp vfio-grub /etc/sysconfig/grub $ sudo grub2-mkconfig -o /etc/grub2.cfg $ sudo dracut -f --kver `uname -r` The kernel vfio modules are loaded: $ lsmod|grep vfio vfio_pci 61440 0 irqbypass 16384 2 vfio_pci,kvm vfio_virqfd 16384 1 vfio_pci vfio_iommu_type1 32768 0 vfio 36864 2 vfio_iommu_type1,vfio_pci For completeness, the kernel boot line reads: $ cat /proc/cmdline BOOT_IMAGE=(hd1,gpt2)/vmlinuz-5.3.8-300.fc31.x86_64 root=/dev/mapper/fedora_localhost--live-root ro resume=/dev/mapper/fedora_localhost--live-swap rd.lvm.lv=fedora_localhost-live/root rd.lvm.lv=fedora_localhost -live/swap modprobe.blacklist=nvidia modprobe.blacklist=nouveau rd.blacklist=nvidia rd.blacklist=nouveau rhgb quiet I must be missing something but can't think what it is. Any ideas would be welcome. poc _______________________________________________ vfio-users mailing list vfio-users@redhat.com https://www.redhat.com/mailman/listinfo/vfio-users
