tests: add VM tests

tests/buildvmwithbootloader/debug-vm.sh

@@ -0,0 +1,30 @@
+# /nix/store/lya9qyl9z5xb4vzdzh4vzcr7gfssk47z-qemu-host-cpu-only-for-vm-tests-2.12.0/bin/qemu-kvm \
+# -cpu \
+# kvm64 \
+# -name \
+# nixos \
+# -m \
+# 384 \
+# -smp \
+# 1 \
+# -device \
+# virtio-rng-pci \
+# -net \
+# nic,netdev=user.0,model=virtio \
+# -netdev \
+# user,id=user.0 \
+# -virtfs \
+# local,path=/nix/store,security_model=none,mount_tag=store \
+# -virtfs \
+# local,path=/tmp/nix-vm.j7eRAzkZvB/xchg,security_model=none,mount_tag=xchg \
+# -virtfs \
+# local,path=/tmp/nix-vm.j7eRAzkZvB/xchg,security_model=none,mount_tag=shared \
+# -drive \
+# index=1,id=drive2,file=/tmp/nix-vm.j7eRAzkZvB/disk.img,media=disk,if=virtio \
+# -drive \
+# index=0,id=drive1,file=/home/steveej/src/steveej/nix-expressions/nixos.qcow2,cache=writeback,werror=report,if=virtio \
+
+
+/nix/store/0i6fr8vv559a50w0vipvd22r0kkg1kx1-qemu-host-cpu-only-for-vm-tests-3.0.0/bin/qemu-kvm -cpu kvm64 -name nixos -m 384 -smp 1 -device virtio-rng-pci -net nic,netdev=user.0,model=virtio -netdev user,id=user.0 -virtfs local,path=/nix/store,security_model=none,mount_tag=store -virtfs local,path=/tmp/nix-vm.BXlbOnli8K/xchg,security_model=none,mount_tag=xchg -virtfs local,path=/tmp/nix-vm.BXlbOnli8K/xchg,security_model=none,mount_tag=shared \
+    -drive index=1,id=drive2,file=/tmp/nix-vm.BXlbOnli8K/disk.img,media=disk,if=virtio \
+    -drive index=0,id=drive1,file=/home/steveej/src/steveej/nix-expressions/tests/nixos.qcow2,cache=writeback,werror=report,if=virtio \

tests/buildvmwithbootloader/result

@@ -0,0 +1 @@
+/nix/store/xh6p394kh1bncmc3lr6l9fb81284ckhf-nixos-vm

tests/test-vm.nix

@@ -0,0 +1,7 @@
+{ lib, config, pkgs, fetchgit, ... }:
+{
+  boot.consoleLogLevel=6;
+  users.users.root.initialPassword = "root";
+  systemd.services."serial-getty@ttyS0".enable = true;
+  networking.firewall.enable = false;
+}