Validate that your GPU, lspci -nnk, is using the vfio-pci as the kernel driver loader otherwise something was not done correctly. Now rebuild initramfs by calling mkinitcpio -g /boot/linux-custom.img and reboot. " however, more than likely you already have it somewhere in the HOOKS line anyhow. In my case, i am using non-free nvidia drivers. You may need to use nouveau or some other driver depending on your video card. vfio vfio_iommu_type1 vfio_pci vfio_virqfd nvidia. Next, add/modify the following line in /etc/nf with MODULES=". Here i will copy 10de:1380 and 10de:0fbc into /etc/modprobe.d/nf like so options vfio-pci ids=10de:1380,10de:0fbc. 02:00.0 VGA compatible controller : NVIDIA Corporation GM107 (rev a2)Ġ2:00.1 Audio device : NVIDIA Corporation Device (rev a1) In my case, i want to use my GTX 750ti as the GPU to pass-through. Using lspci -nn we can find the device IDs of the GPU that we want to use. Another important note, you only need pcie_acs_override=downstream if you are using an ACS override patch.Īfter modifying the grub file you need to update grub with update-grub and reboot. You do not remove other kernel commands such as quiet and resume=UUID if you have them. intel_iommu=on iommu=pt pcie_acs_override=downstream hugepages=2048" Now lets quickly open and edit the /etc/default/grub and append the following to the GRUB_CMDLINE_LINUX_DEFAULT line: GRUB_CMDLINE_LINUX_DEFAULT=".
For this to work you need two video cards.įirst we need to enable IOMMU via AMD-Vi or Intel Vt-d in the BIOS.
Hugepages qemu vga passthrough how to#
Today I would like to quickly talk about how to setup a GPU pass-through for a decidated GPU on a qemu/kvm windows 10 guest.
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