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50 lines
1.7 KiB
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50 lines
1.7 KiB
Markdown
# Install guide for QEMU and VFIO
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## ArchLinux
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### Install the necessary packages
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```
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# pacman -S qemu ovmf
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```
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### Enabling IOMMU support on boot
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#### For `systemd-boot` edit `/boot/loader/entries/arch.conf` and add `intel_iommu=on` **OR** `amd_iommu=on` and `iommu=pt`.
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```
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# AMD
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options root=/dev/sda2 amd_iommu=on iommu=pt
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---------------------------------------------
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# Intel
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options root=/dev/sda2 intel_iommu=on iommu=pt
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```
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Reboot.
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#### For `GRUB` edit `/etc/default/grub` and append your kernel options, `intel_iommu=on` **OR** `amd_iommu=on` and `iommu=pt`, to the `GRUB_CMDLINE_LINUX_DEFAULT`.
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```
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# AMD
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GRUB_CMDLINE_LINUX_DEFAULT="amd_iommu=on iommu=pt"
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---------------------------------------------------
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# Intel
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GRUB_CMDLINE_LINUX_DEFAULT="intel_iommu=on iommu=pt"
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```
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And then automatically re-generate the grub.cfg file with:
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```
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# grub-mkconfig -o /boot/grub/grub.cfg
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```
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Reboot.
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After reboot IOMMU should be working:
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```
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$ dmesg | grep -e DMAR -e IOMMU
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--------------------------------------------
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[ 0.492684] AMD-Vi: IOMMU performance counters supported
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[ 0.494370] AMD-Vi: Found IOMMU at 0000:00:00.2 cap 0x40
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[ 0.494644] perf/amd_iommu: Detected AMD IOMMU #0 (2 banks, 4 counters/bank).
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```
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That's everything; unlike two GPU passthrough you don't need to load kernel modules on boot.
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## For more information refer to this guides
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[ArchWiki QEMU](https://wiki.archlinux.org/index.php/QEMU)
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[ArchWiki PCI passthrough via OVMF](https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF)
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[How to setup a gaming virtual machine with gpu passthrough qemu kvm libvirt and vfio](https://www.se7ensins.com/forums/threads/how-to-setup-a-gaming-virtual-machine-with-gpu-passthrough-qemu-kvm-libvirt-and-vfio.1371980/)
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