Renamed Host to Linux/Guides/GPU Passthrough/Linux Host Setup.

Linux/Guides/GPU Passthrough/Linux Host Setup.md

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+# Linux Host Setup
+
+## Enable IOMMU
+
+```bash
+sudo vim /etc/default/grub
+```
+
+Add amd_iommu=on iommu=pt
+
+`GRUB_CMDLINE_LINUX_DEFAULT="... amd_iommu=on iommu=pt"`
+
+```bash
+sudo grub-mkconfig -o /boot/grub/grub.cfg
+sudo reboot
+```
+
+Verify
+
+```bash
+sudo dmesg | grep -i iommu
+```
+
+## Find GPU IDs
+
+```bash
+lspci -nn | grep -E "VGA|Audio"
+```
+
+In my case, I get
+
+- `10de:28a0`
+- `10de:22be`
+
+## VFIO Module Options
+
+```bash
+sudo vim /etc/modprobe.d/vfio.conf
+```
+
+> ### Arch
+> ```bash
+> options vfio-pci ids=10de:28a0,10de:22be
+> ```
+
+> ### Fedora
+> ```bash
+> options vfio-pci ids=10de:28a0,10de:22be disable_vga=1
+> softdep nvidia pre: vfio-pci
+> softdep nouveau pre: vfio-pci
+> ```
+
+## Blacklist GPU
+
+```bash
+sudo vim /etc/modprobe.d/blacklist-gpu.conf
+```
+
+> ### Arch
+> ```
+> blacklist nouveau
+> blacklist nvidia
+> blacklist nvidia_drm
+> blacklist nvidia_modeset
+> ```
+
+> ### Fedora
+> ```
+> blacklist nouveau
+> blacklist nvidia
+> blacklist nvidia_drm
+> blacklist nvidia_modeset
+> blacklist nvidia_uvm
+> blacklist rivafb
+> blacklist nvidiafb
+> blacklist snd_hda_intel
+> ```
+
+## Load VFIO
+
+> ### Arch
+> ```bash
+> sudo vim /etc/mkinitcpio.conf
+> ```
+> ```
+> MODULES=(vfio vfio_iommu_type1 vfio_pci)
+> ```
+> ```
+> sudo mkinitcpio -P
+> sudo reboot
+> ```
+
+> ### Fedora
+> ```bash
+> sudo vim /etc/dracut.conf.d/10-vfio.conf
+> ```
+> ```
+> force_drivers+=" vfio vfio_iommu_type1 vfio_pci "
+> ```
+> ```bash
+> sudo dracut -f
+> ```
+> ```bash
+> sudo reboot
+> ```
+
+### Confirm Kernel Driver
+
+```bash
+lspci -nnk -d 10de:28a0
+```
+
+```bash
+lspci -nnk -d 10de:22be
+```
+
+## Install Virtualization Stack
+
+> ### Arch
+> ```bash
+> sudo pacman -S --needed virt-manager qemu-full libvirt dnsmasq ovmf swtpm
+> ```
+
+> ### Fedora
+> ```bash
+> sudo dnf install @virtualization virt-manager qemu-kvm libvirt-daemon-config-network libvirt-daemon-kvm bridge-utils edk2-ovmf swtpm
+> ```
+
+## User Groups and Permissions
+
+> ### Arch
+> ```bash
+> sudo usermod -aG libvirt,kvm,input,render,libvirt-qemu $USER
+> ```
+
+> ### Fedora
+> ```bash
+> sudo usermod -aG libvirt,kvm,input,render $USER
+> ```
+
+Reboot the system.
+
+And now verify:
+
+```bash
+virsh list --all
+```
+
+If it doesn't error, you're good.