Looking Glass: Difference between revisions
Created page with " === Prerequisites === * NixOS 25.11 (unstable should work too) * Looking Glass B7 * systemd 258 (because of [https://github.com/systemd/systemd/issues/39056 this]) === Configuration === ==== IVSHMEM with the KVMFR module ==== ====== Installing and Loading ====== <syntaxhighlight lang=nix> boot.extraModulePackages = [ config.boot.kernelPackages.kvmfr ]; boot.initrd.kernelModules = [ "kvmfr" ]; boot.kernelParams = [ "kvmfr.static_..." |
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====== Permissions ====== | ====== Permissions ====== | ||
<syntaxhighlight lang=nix> | <syntaxhighlight lang="nix"> | ||
services.udev.packages = lib.singleton (pkgs.writeTextFile | services.udev.packages = lib.singleton (pkgs.writeTextFile | ||
{ | { | ||
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destination = "/etc/udev/rules.d/70-kvmfr.rules"; | destination = "/etc/udev/rules.d/70-kvmfr.rules"; | ||
} | } | ||
); | |||
users.users = { | users.users = { | ||
| Line 36: | Line 37: | ||
}; | }; | ||
}; | }; | ||
</syntaxhighlight > | </syntaxhighlight> | ||
====== CGroups ====== | ====== CGroups ====== | ||
Latest revision as of 01:45, 21 January 2026
Prerequisites
- NixOS 25.11 (unstable should work too)
- Looking Glass B7
- systemd 258 (because of this)
Configuration
IVSHMEM with the KVMFR module
Installing and Loading
boot.extraModulePackages = [ config.boot.kernelPackages.kvmfr ];
boot.initrd.kernelModules = [ "kvmfr" ];
boot.kernelParams = [ "kvmfr.static_size_mb=64" ]; # replace with your calculated MEM requirement
Permissions
services.udev.packages = lib.singleton (pkgs.writeTextFile
{
name = "kvmfr";
text = ''
SUBSYSTEM=="kvmfr", GROUP="kvm", MODE="0660", TAG+="uaccess"
'';
destination = "/etc/udev/rules.d/70-kvmfr.rules";
}
);
users.users = {
user = { # replace with your username
extraGroups = [ "kvm" ];
};
};
CGroups
virtualisation.libvirtd.qemu = {
verbatimConfig = ''
namespaces = []
cgroup_device_acl = [
"/dev/null", "/dev/full", "/dev/zero",
"/dev/random", "/dev/urandom",
"/dev/ptmx", "/dev/kvm", "/dev/kqemu",
"/dev/rtc","/dev/hpet", "/dev/vfio/vfio",
"/dev/kvmfr0"
]
'';
};
Install the Looking Glass client
environment.systemPackages = with pkgs; [
looking-glass-client
];