1 files changed, 17 insertions, 0 deletions
diff --git a/nixos/modules/profiles/qemu-guest.nix b/nixos/modules/profiles/qemu-guest.nix
new file mode 100644
index 00000000000..d4335edfcf2
--- /dev/null
+++ b/nixos/modules/profiles/qemu-guest.nix
@@ -0,0 +1,17 @@
+# Common configuration for virtual machines running under QEMU (using
+# virtio).
+
+{ ... }:
+
+{
+  boot.initrd.availableKernelModules = [ "virtio_net" "virtio_pci" "virtio_mmio" "virtio_blk" "virtio_scsi" "9p" "9pnet_virtio" ];
+  boot.initrd.kernelModules = [ "virtio_balloon" "virtio_console" "virtio_rng" ];
+
+  boot.initrd.postDeviceCommands =
+    ''
+      # Set the system time from the hardware clock to work around a
+      # bug in qemu-kvm > 1.5.2 (where the VM clock is initialised
+      # to the *boot time* of the host).
+      hwclock -s
+    '';
+}