diff --git a/nixos/modules/virtualisation/qemu-vm.nix b/nixos/modules/virtualisation/qemu-vm.nix
index 33bd759a1e3f..0a2646a3364e 100644
--- a/nixos/modules/virtualisation/qemu-vm.nix
+++ b/nixos/modules/virtualisation/qemu-vm.nix
@@ -716,6 +716,8 @@ in
     };
 
     virtualisation.qemu = {
+      enableSharedMemory = mkEnableOption "shared memory";
+
       package = mkOption {
         type = types.package;
         default =
@@ -1338,6 +1340,10 @@ in
         "-device usb-kbd"
         "-device usb-tablet"
       ])
+      (mkIf cfg.qemu.enableSharedMemory [
+        "-object memory-backend-memfd,id=mem0,size=${toString config.virtualisation.memorySize}M,share=on"
+        "-machine memory-backend=mem0"
+      ])
       (
         let
           alphaNumericChars = lowerChars ++ upperChars ++ (map toString (range 0 9));