From 29a6c9b9a3f1e64c0c68a57a5f087deb97a99f8a Mon Sep 17 00:00:00 2001
From: ilian <ilian@tuta.io>
Date: Mon, 8 Feb 2021 13:05:15 +0100
Subject: nixos/hypervGuest: add Microsoft Synthetic Keyboard driver

Ensure that the HyperV keyboard driver is available in the early
stages of the boot process. This allows the user to enter a disk
encryption passphrase or repair a boot problem in an interactive
shell.
---
 nixos/modules/virtualisation/hyperv-guest.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/nixos/modules/virtualisation/hyperv-guest.nix b/nixos/modules/virtualisation/hyperv-guest.nix
index adc2810a993..105224b8964 100644
--- a/nixos/modules/virtualisation/hyperv-guest.nix
+++ b/nixos/modules/virtualisation/hyperv-guest.nix
@@ -31,6 +31,8 @@ in {
         "hv_balloon" "hv_netvsc" "hv_storvsc" "hv_utils" "hv_vmbus"
       ];
 
+      initrd.availableKernelModules = [ "hyperv_keyboard" ];
+
       kernelParams = [
         "video=hyperv_fb:${cfg.videoMode} elevator=noop"
       ];
-- 
cgit 1.4.1