On Tue, 2013-06-25 at 18:46 +0200, Mario Ceresa wrote: > Dear all, > following Cole's suggestions I installed the fedora-virt-preview repo and > tried again with VGA > passthrough from [1] > > For this setup i use a nvidia card as the primary one and a radeon hd 7850 > as the passthrough device. > > However, there are no iommu_group links neither under > /sys/bus/pci/devices/0000:05:00.0/ (which is my radeon card) nor under any > of the other devices. > > AFAIG it should be the vfio module which creates these links so I guess > it's not working for me. > > The driver loads correctly: there are no errors in dmesg and lsmod shows: > vfio_pci 32063 0 > vfio 19210 1 vfio_pci > > I added iommu=pt iommu=1 to grub
iommu=1 is not a valid option. The user in archlinux thread is using an AMD system, which enables the iommu by default. On an Intel system, use intel_iommu=on > My system currently includes: > > * libvrit 1.0.6 > * qemu 1.5.0 > * kernel 3.9.6 > > Maybe the kernel is outdated? > > I know the functionality is experimental so it's just to know if I'm doing > some obvious mistakes. > > Thanks for your help, > > Best regards, > > Mario > > [1] https://bbs.archlinux.org/viewtopic.php?id=162768 > _______________________________________________ > virt mailing list > virt@lists.fedoraproject.org > https://admin.fedoraproject.org/mailman/listinfo/virt _______________________________________________ virt mailing list virt@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/virt
