From a6603fd8a8a058e957fd5cc17302f3efb6c9b839 Mon Sep 17 00:00:00 2001
From: gnidorah <gnidorah@users.noreply.github.com>
Date: Thu, 18 Oct 2018 22:35:15 +0300
Subject: [PATCH] kvmgt module: add service restart on failure

---
 nixos/modules/virtualisation/kvmgt.nix | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/nixos/modules/virtualisation/kvmgt.nix b/nixos/modules/virtualisation/kvmgt.nix
index fc0bedb68bd0..132815a0ad63 100644
--- a/nixos/modules/virtualisation/kvmgt.nix
+++ b/nixos/modules/virtualisation/kvmgt.nix
@@ -50,11 +50,17 @@ in {
       nameValuePair "kvmgt-${name}" {
         description = "KVMGT VGPU ${name}";
         serviceConfig = {
-          Type = "oneshot";
+          Type = "forking";
           RemainAfterExit = true;
+          Restart = "on-failure";
+          RestartSec = 5;
           ExecStart = "${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'";
         };
+        unitConfig = {
+          StartLimitBurst = 5;
+          StartLimitIntervalSec = 30;
+        };
         wantedBy = [ "multi-user.target" ];
       }
     ) cfg.vgpus;