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Do not wait for udev to settle

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Relying on udev to assign permissions to the virtgpu was very "proper"
but really excessive. We have a simple static configuration, built into
the kernel, so there are no dynamic shenanigans, we can always reliably
just chmod/chown the permissions. Let's go back to faster booting.
This commit is contained in:
Val Packett 2025-11-28 01:54:58 -03:00
parent 73fdfca030
commit 87691a5747
1 changed files with 2 additions and 17 deletions
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19
nixosModules/default.nix
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@ -170,21 +170,6 @@ in {
serviceConfig.ExecStart = "/opt/bin/muvm-pwbridge";
};
systemd.services.wait-for-udev = {
enable = true;
description = "Wait for device rules being applied";
wantedBy = ["microvm.target"];
requires = ["systemd-udevd.service"];
after = ["systemd-udevd.service"];
serviceConfig = {
Type = "oneshot";
ExecStart = [
"udevadm trigger --action=add"
"udevadm settle"
];
};
};
systemd.sockets.wayland-proxy-virtwl = {
enable = true;
description = "Wayland cross-domain proxy socket";
@ -200,9 +185,9 @@ in {
systemd.services.wayland-proxy-virtwl = {
enable = true;
description = "Wayland cross-domain proxy";
after = ["wait-for-udev.service"];
requires = ["wayland-proxy-virtwl.socket" "wait-for-udev.service"];
requires = ["wayland-proxy-virtwl.socket"];
serviceConfig = {
ExecStartPre = "+/run/current-system/sw/bin/chmod 0666 /dev/dri/card0 /dev/dri/renderD128";
ExecStart = "${virtwl.packages.${pkgs.system}.proxy}/bin/wayland-proxy-virtwl --virtio-gpu";
Environment = ["XDG_RUNTIME_DIR=${runtimeDir}"];
User = "appvm";