mirror of
https://github.com/ilyakooo0/nixpkgs.git
synced 2024-11-20 00:53:12 +03:00
nixos/kvmgt: init
This commit is contained in:
parent
62500ec964
commit
a3e239ac62
@ -787,6 +787,7 @@
|
||||
./virtualisation/lxd.nix
|
||||
./virtualisation/amazon-options.nix
|
||||
./virtualisation/hyperv-guest.nix
|
||||
./virtualisation/kvmgt.nix
|
||||
./virtualisation/openvswitch.nix
|
||||
./virtualisation/parallels-guest.nix
|
||||
./virtualisation/qemu-guest-agent.nix
|
||||
|
64
nixos/modules/virtualisation/kvmgt.nix
Normal file
64
nixos/modules/virtualisation/kvmgt.nix
Normal file
@ -0,0 +1,64 @@
|
||||
{ config, lib, pkgs, ... }:
|
||||
|
||||
with lib;
|
||||
|
||||
let
|
||||
cfg = config.virtualisation.kvmgt;
|
||||
kernelPackages = config.boot.kernelPackages;
|
||||
vgpuOptions = {
|
||||
uuid = mkOption {
|
||||
type = types.string;
|
||||
description = "UUID of VGPU device. You can generate one with <package>libossp_uuid</package>.";
|
||||
};
|
||||
};
|
||||
in {
|
||||
options = {
|
||||
virtualisation.kvmgt = {
|
||||
enable = mkEnableOption ''
|
||||
KVMGT (iGVT-g) VGPU support. Allows Qemu/KVM guests to share host's Intel integrated graphics card.
|
||||
Currently only one graphical device can be shared
|
||||
'';
|
||||
# multi GPU support is under the question
|
||||
device = mkOption {
|
||||
type = types.string;
|
||||
default = "0000:00:02.0";
|
||||
description = "PCI ID of graphics card. You can figure it with <command>ls /sys/class/mdev_bus</command>.";
|
||||
};
|
||||
vgpus = mkOption {
|
||||
default = {};
|
||||
type = with types; attrsOf (submodule [ { options = vgpuOptions; } ]);
|
||||
description = ''
|
||||
Virtual GPUs to be used in Qemu. You can find devices via <command>ls /sys/bus/pci/devices/*/mdev_supported_types</command>
|
||||
and find info about device via <command>cat /sys/bus/pci/devices/*/mdev_supported_types/i915-GVTg_V5_4/description</command>
|
||||
'';
|
||||
example = {
|
||||
"i915-GVTg_V5_8" = {
|
||||
uuid = "a297db4a-f4c2-11e6-90f6-d3b88d6c9525";
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
config = mkIf cfg.enable {
|
||||
assertions = singleton {
|
||||
assertion = versionAtLeast kernelPackages.kernel.version "4.16";
|
||||
message = "KVMGT is not properly supported for kernels older than 4.16";
|
||||
};
|
||||
boot.kernelParams = [ "i915.enable_gvt=1" ];
|
||||
systemd.services = mapAttrs' (name: value:
|
||||
nameValuePair "kvmgt-${name}" {
|
||||
description = "KVMGT VGPU ${name}";
|
||||
serviceConfig = {
|
||||
Type = "oneshot";
|
||||
RemainAfterExit = true;
|
||||
ExecStart = "${pkgs.runtimeShell} -c 'echo ${value.uuid} > /sys/bus/pci/devices/${cfg.device}/mdev_supported_types/${name}/create'";
|
||||
ExecStop = "${pkgs.runtimeShell} -c 'echo 1 > /sys/bus/pci/devices/${cfg.device}/${value.uuid}/remove'";
|
||||
};
|
||||
wantedBy = [ "multi-user.target" ];
|
||||
}
|
||||
) cfg.vgpus;
|
||||
};
|
||||
|
||||
meta.maintainers = with maintainers; [ gnidorah ];
|
||||
}
|
Loading…
Reference in New Issue
Block a user