On 10/15/2018 12:00 PM, Simon Brand wrote: > Good evening, > > I have a Lenovo Thinkpad P51 and I want to pass the GPU (GM107GLM > [Quadro M1200 Mobile]) to (linux) VM. I only want to run cuda on the > GPU, so there is no output needed. > I use an uptodate arch linux: > $ uname -r > 4.18.14-arch1-1-ARCH > $ qemu-system-x86_64 --version > > The guest can see the nvidia card and the nvidia module is loaded, but > when I try to run nvidia-smi, it does not find my card. > > I read that I need to pass every device in my IOMMU group to the vm. > I have the following groups: > > IOMMU Group 1 00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200 > v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) [8086:1901] > (rev 05) > IOMMU Group 1 01:00.0 3D controller [0302]: NVIDIA Corporation > GM107GLM [Quadro M1200 Mobile] [10de:13b6] (rev a2) > IOMMU Group 2 00:02.0 VGA compatible controller [0300]: Intel > Corporation Device [8086:591b] (rev 04) > > I start the host kernel with these parameters: > BOOT_IMAGE=/boot/vmlinuz-linux > root=UUID=9ad057db-0173-4df2-b73c-ca8b2f30b850 rw > cryptdevice=/dev/nvme0n1p1:root root=/dev/mapper/root > cryptkey=rootfs:/crypt.key intel_iommu=on i915.enable_gvt=1 iommu=pt > quiet vfio_pci.ids=10de:13b6,8086:1901 efifb=off > > But the pci-bridge still gets assigned to pcieport driver. (I dont > know, if this is a problem, beause I dont pass it to the vm?).
You don't pass pci bridges or switches or attempt to assign them to vfio no matter if they appear in the same group as a device like they do on intel systems, it is probably nothing (since you say it doesn't get assigned to vfio-pci anyway) but try again without that. _______________________________________________ vfio-users mailing list vfio-users@redhat.com https://www.redhat.com/mailman/listinfo/vfio-users
