feat: working gpu passthrough \o/

This commit is contained in:
Evar 2024-12-30 05:03:36 -05:00
parent 964b99b28d
commit c140a12e66
9 changed files with 391 additions and 2 deletions

273
flake.lock generated
View file

@ -1,5 +1,65 @@
{ {
"nodes": { "nodes": {
"ags": {
"inputs": {
"astal": "astal",
"nixpkgs": "nixpkgs"
},
"locked": {
"lastModified": 1735485506,
"narHash": "sha256-7CWr3Q83KnGiLUn0oaboafLMOXQ0X9/fjFRVY1xopbM=",
"owner": "Aylur",
"repo": "ags",
"rev": "251d39413543264361898b02035775aa3e46fe52",
"type": "github"
},
"original": {
"owner": "Aylur",
"repo": "ags",
"type": "github"
}
},
"anyrun": {
"inputs": {
"flake-parts": "flake-parts",
"nixpkgs": "nixpkgs_2",
"systems": "systems"
},
"locked": {
"lastModified": 1735301051,
"narHash": "sha256-jU88Q9tP4vuvWYGQcmOdFwI9e2uMPVYJHbXdiklIH9o=",
"owner": "Kirottu",
"repo": "anyrun",
"rev": "06017e753c8886d5296768dca80745ee09402a2d",
"type": "github"
},
"original": {
"owner": "Kirottu",
"repo": "anyrun",
"type": "github"
}
},
"astal": {
"inputs": {
"nixpkgs": [
"ags",
"nixpkgs"
]
},
"locked": {
"lastModified": 1735172721,
"narHash": "sha256-rtEAwGsHSppnkR3Qg3eRJ6Xh/F84IY9CrBBLzYabalY=",
"owner": "aylur",
"repo": "astal",
"rev": "6c84b64efc736e039a8a10774a4a1bf772c37aa2",
"type": "github"
},
"original": {
"owner": "aylur",
"repo": "astal",
"type": "github"
}
},
"disko": { "disko": {
"inputs": { "inputs": {
"nixpkgs": [ "nixpkgs": [
@ -20,6 +80,119 @@
"type": "github" "type": "github"
} }
}, },
"flake-parts": {
"inputs": {
"nixpkgs-lib": [
"anyrun",
"nixpkgs"
]
},
"locked": {
"lastModified": 1727826117,
"narHash": "sha256-K5ZLCyfO/Zj9mPFldf3iwS6oZStJcU4tSpiXTMYaaL0=",
"owner": "hercules-ci",
"repo": "flake-parts",
"rev": "3d04084d54bedc3d6b8b736c70ef449225c361b1",
"type": "github"
},
"original": {
"owner": "hercules-ci",
"repo": "flake-parts",
"type": "github"
}
},
"flake-parts_2": {
"inputs": {
"nixpkgs-lib": "nixpkgs-lib"
},
"locked": {
"lastModified": 1733312601,
"narHash": "sha256-4pDvzqnegAfRkPwO3wmwBhVi/Sye1mzps0zHWYnP88c=",
"owner": "hercules-ci",
"repo": "flake-parts",
"rev": "205b12d8b7cd4802fbcb8e8ef6a0f1408781a4f9",
"type": "github"
},
"original": {
"owner": "hercules-ci",
"repo": "flake-parts",
"type": "github"
}
},
"home-manager": {
"inputs": {
"nixpkgs": "nixpkgs_3"
},
"locked": {
"lastModified": 1735381016,
"narHash": "sha256-CyCZFhMUkuYbSD6bxB/r43EdmDE7hYeZZPTCv0GudO4=",
"owner": "nix-community",
"repo": "home-manager",
"rev": "10e99c43cdf4a0713b4e81d90691d22c6a58bdf2",
"type": "github"
},
"original": {
"owner": "nix-community",
"repo": "home-manager",
"type": "github"
}
},
"impermanence": {
"locked": {
"lastModified": 1734945620,
"narHash": "sha256-olIfsfJK4/GFmPH8mXMmBDAkzVQ1TWJmeGT3wBGfQPY=",
"owner": "nix-community",
"repo": "impermanence",
"rev": "d000479f4f41390ff7cf9204979660ad5dd16176",
"type": "github"
},
"original": {
"owner": "nix-community",
"repo": "impermanence",
"type": "github"
}
},
"muse-sounds-manager": {
"inputs": {
"nixpkgs": [
"nixpkgs"
]
},
"locked": {
"lastModified": 1711493694,
"narHash": "sha256-u6hPaeOUsV/d/kBNo1vlG6X0/gHvTkHfCECH9pjFnV8=",
"owner": "thilobillerbeck",
"repo": "muse-sounds-manager-nix",
"rev": "06b0da28c54331d5af73efd2ebf264ce914e5936",
"type": "github"
},
"original": {
"owner": "thilobillerbeck",
"repo": "muse-sounds-manager-nix",
"rev": "06b0da28c54331d5af73efd2ebf264ce914e5936",
"type": "github"
}
},
"nix-index-database": {
"inputs": {
"nixpkgs": [
"nixpkgs"
]
},
"locked": {
"lastModified": 1735443188,
"narHash": "sha256-AydPpRBh8+NOkrLylG7vTsHrGO2b5L7XkMEL5HlzcA8=",
"owner": "nix-community",
"repo": "nix-index-database",
"rev": "55ab1e1df5daf2476e6b826b69a82862dcbd7544",
"type": "github"
},
"original": {
"owner": "nix-community",
"repo": "nix-index-database",
"type": "github"
}
},
"nixos-facter-modules": { "nixos-facter-modules": {
"locked": { "locked": {
"lastModified": 1734596637, "lastModified": 1734596637,
@ -35,7 +208,82 @@
"type": "github" "type": "github"
} }
}, },
"nixos-hardware": {
"locked": {
"lastModified": 1735388221,
"narHash": "sha256-e5IOgjQf0SZcFCEV/gMGrsI0gCJyqOKShBQU0iiM3Kg=",
"owner": "NixOS",
"repo": "nixos-hardware",
"rev": "7c674c6734f61157e321db595dbfcd8523e04e19",
"type": "github"
},
"original": {
"owner": "NixOS",
"repo": "nixos-hardware",
"type": "github"
}
},
"nixpkgs": { "nixpkgs": {
"locked": {
"lastModified": 1734649271,
"narHash": "sha256-4EVBRhOjMDuGtMaofAIqzJbg4Ql7Ai0PSeuVZTHjyKQ=",
"owner": "nixos",
"repo": "nixpkgs",
"rev": "d70bd19e0a38ad4790d3913bf08fcbfc9eeca507",
"type": "github"
},
"original": {
"owner": "nixos",
"ref": "nixos-unstable",
"repo": "nixpkgs",
"type": "github"
}
},
"nixpkgs-lib": {
"locked": {
"lastModified": 1733096140,
"narHash": "sha256-1qRH7uAUsyQI7R1Uwl4T+XvdNv778H0Nb5njNrqvylY=",
"type": "tarball",
"url": "https://github.com/NixOS/nixpkgs/archive/5487e69da40cbd611ab2cadee0b4637225f7cfae.tar.gz"
},
"original": {
"type": "tarball",
"url": "https://github.com/NixOS/nixpkgs/archive/5487e69da40cbd611ab2cadee0b4637225f7cfae.tar.gz"
}
},
"nixpkgs_2": {
"locked": {
"lastModified": 1730200266,
"narHash": "sha256-l253w0XMT8nWHGXuXqyiIC/bMvh1VRszGXgdpQlfhvU=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "807e9154dcb16384b1b765ebe9cd2bba2ac287fd",
"type": "github"
},
"original": {
"owner": "NixOS",
"ref": "nixos-unstable",
"repo": "nixpkgs",
"type": "github"
}
},
"nixpkgs_3": {
"locked": {
"lastModified": 1734649271,
"narHash": "sha256-4EVBRhOjMDuGtMaofAIqzJbg4Ql7Ai0PSeuVZTHjyKQ=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "d70bd19e0a38ad4790d3913bf08fcbfc9eeca507",
"type": "github"
},
"original": {
"owner": "NixOS",
"ref": "nixos-unstable",
"repo": "nixpkgs",
"type": "github"
}
},
"nixpkgs_4": {
"locked": { "locked": {
"lastModified": 1735268880, "lastModified": 1735268880,
"narHash": "sha256-7QEFnKkzD13SPxs+UFR5bUFN2fRw+GlL0am72ZjNre4=", "narHash": "sha256-7QEFnKkzD13SPxs+UFR5bUFN2fRw+GlL0am72ZjNre4=",
@ -53,9 +301,32 @@
}, },
"root": { "root": {
"inputs": { "inputs": {
"ags": "ags",
"anyrun": "anyrun",
"disko": "disko", "disko": "disko",
"flake-parts": "flake-parts_2",
"home-manager": "home-manager",
"impermanence": "impermanence",
"muse-sounds-manager": "muse-sounds-manager",
"nix-index-database": "nix-index-database",
"nixos-facter-modules": "nixos-facter-modules", "nixos-facter-modules": "nixos-facter-modules",
"nixpkgs": "nixpkgs" "nixos-hardware": "nixos-hardware",
"nixpkgs": "nixpkgs_4"
}
},
"systems": {
"locked": {
"lastModified": 1689347949,
"narHash": "sha256-12tWmuL2zgBgZkdoB6qXZsgJEH9LR3oUgpaQq2RbI80=",
"owner": "nix-systems",
"repo": "default-linux",
"rev": "31732fcf5e8fea42e59c2488ad31a0e651500f68",
"type": "github"
},
"original": {
"owner": "nix-systems",
"repo": "default-linux",
"type": "github"
} }
} }
}, },

View file

@ -116,6 +116,7 @@
}; };
}; };
extensions = with pkgs.vscode-extensions; [ extensions = with pkgs.vscode-extensions; [
vscodevim.vim
mkhl.direnv mkhl.direnv
jnoortheen.nix-ide jnoortheen.nix-ide
]; ];

View file

@ -19,6 +19,7 @@ in {
./desktop.nix ./desktop.nix
# ./emacs.nix # ./emacs.nix
./apps.nix ./apps.nix
./vm.nix
]; ];
home.sessionVariables = variables; home.sessionVariables = variables;

18
home/vm.nix Normal file
View file

@ -0,0 +1,18 @@
{
config,
lib,
pkgs,
...
}: {
home.packages = [
pkgs.virtio-win
];
dconf.settings = {
"org/virt-manager/virt-manager/connections" = {
autoconnect = ["qemu:///system"];
uris = ["qemu:///system"];
};
};
}

8
iommu.sh Executable file
View file

@ -0,0 +1,8 @@
#!/usr/bin/env bash
shopt -s nullglob
for g in $(find /sys/kernel/iommu_groups/* -maxdepth 0 -type d | sort -V); do
echo "IOMMU Group ${g##*/}:"
for d in $g/devices/*; do
echo -e "\t$(lspci -nns ${d##*/})"
done;
done;

View file

@ -23,13 +23,21 @@
./users.nix ./users.nix
./user-system-config.nix ./user-system-config.nix
./vm.nix
]; ];
vfio = {
enable = true;
earlyKMS = true;
applyACSpatch = true;
};
# Allows referring to this flake by the shorthand `nixos-config`, which lets you do e.g. # Allows referring to this flake by the shorthand `nixos-config`, which lets you do e.g.
# nix repl nixos-config # nix repl nixos-config
nix.registry.nixos-config.to = { nix.registry.nixos-config.to = {
type = "git"; type = "git";
url = "file://${config.users.users.evar.home}/dev/nix/config"; url = "file://${config.users.users.evar.home}/git/nixos-framework-laptop-config";
}; };
# In order to catch all logs, we need to mount this early enough in the boot process. # In order to catch all logs, we need to mount this early enough in the boot process.

View file

@ -16,6 +16,7 @@
"/var/lib/fprint" "/var/lib/fprint"
"/var/lib/upower" "/var/lib/upower"
"/var/lib/tailscale" "/var/lib/tailscale"
"/var/lib/libvirt"
"/var/lib/systemd/coredump" "/var/lib/systemd/coredump"
"/etc/NetworkManager/system-connections" "/etc/NetworkManager/system-connections"
"/var/lib/iwd" # Known networks and keys "/var/lib/iwd" # Known networks and keys

72
nixos/vm.nix Normal file
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@ -0,0 +1,72 @@
{
config,
lib,
pkgs,
...
}:
let
gpuIDs = [
"1002:7480" # Graphics
"1002:ab30" # Audio
"1022:15c0" # Top Right physical USB C port
];
in {
options.vfio.enable = with lib;
mkEnableOption "Configure the machine for VFIO";
options.vfio.earlyKMS = with lib;
mkEnableOption "Configure the machine to load the GPU driver during initramfs";
options.vfio.applyACSpatch = with lib;
mkEnableOption
''If set, the following things will happen:
- The ACS override patch is applied
- Applies the i915-vga-arbiter patch
- Adds pcie_acs_override=downstream to the command line
'';
config = let cfg = config.vfio;
in {
networking.bridges = {
"winvm0" = {
interfaces = [ "eth0" ];
};
};
networking.interfaces.eth0.useDHCP = true;
networking.interfaces.winvm0.useDHCP = true;
programs.virt-manager.enable = true;
users.groups.libvirtd.members = ["evar"];
hardware.graphics.enable = true;
virtualisation.libvirtd.enable = true;
virtualisation.libvirtd.qemu.swtpm.enable = true; # for TPM 2.0 support
virtualisation.spiceUSBRedirection.enable = true;
boot = {
initrd.kernelModules = [
"vfio_pci"
"vfio"
"vfio_iommu_type1"
# "vfio_virqfd" # This is apparently a part of the kernel now
] ++ lib.optional cfg.earlyKMS "amdgpu";
# kernelPatches = [] ++ lib.optional cfg.applyACSpatch
# {
# name = "add-acs-overrides";
# patch = pkgs.fetchurl {
# name = "add-acs-overrides.patch";
# url = "https://aur.archlinux.org/cgit/aur.git/plain/1001-6.8.0-add-acs-overrides.patch?h=linux-vfio";
# sha256 = "1qd68s9r0ppynksbffqn2qbp1whqpbfp93dpccp9griwhx5srx6v";
# };
# };
kernelParams = [
# enable IOMMU
"amd_iommu=on"
] ++ lib.optional cfg.enable
# isolate the GPU
("vfio-pci.ids=" + lib.concatStringsSep "," gpuIDs);
# ++ lib.optional cfg.applyACSpatch "pcie_acs_override=downstream,multifunction";
};
};
}

9
usbiommu.sh Executable file
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@ -0,0 +1,9 @@
#!/usr/bin/env bash
shopt -s nullglob
for usb_ctrl in /sys/bus/pci/devices/*/usb*; do
pci_path=${usb_ctrl%/*}
iommu_group=$(readlink $pci_path/iommu_group)
echo "Bus $(cat $usb_ctrl/busnum) --> ${pci_path##*/} (IOMMU group ${iommu_group##*/})"
lsusb -s ${usb_ctrl#*/usb}:
echo
done