pyrox.dev
1# QEMU flags shared between various Nix expressions.
2{ pkgs }:
3
4let
5 zeroPad = n: if n < 10 then "0${toString n}" else toString n;
6in
7
8{
9
10 qemuNICFlags = nic: net: machine:
11 [ "-device virtio-net-pci,netdev=vlan${toString nic},mac=52:54:00:12:${zeroPad net}:${zeroPad machine}"
12 "-netdev vde,id=vlan${toString nic},sock=$QEMU_VDE_SOCKET_${toString net}"
13 ];
14
15 qemuSerialDevice = if pkgs.stdenv.isi686 || pkgs.stdenv.isx86_64 then "ttyS0"
16 else if pkgs.stdenv.isAarch32 || pkgs.stdenv.isAarch64 then "ttyAMA0"
17 else throw "Unknown QEMU serial device for system '${pkgs.stdenv.hostPlatform.system}'";
18
19 qemuBinary = qemuPkg: {
20 "x86_64-linux" = "${qemuPkg}/bin/qemu-kvm -cpu kvm64";
21 "armv7l-linux" = "${qemuPkg}/bin/qemu-system-arm -enable-kvm -machine virt -cpu host";
22 "aarch64-linux" = "${qemuPkg}/bin/qemu-system-aarch64 -enable-kvm -machine virt,gic-version=host -cpu host";
23 "x86_64-darwin" = "${qemuPkg}/bin/qemu-kvm -cpu kvm64";
24 }.${pkgs.stdenv.hostPlatform.system} or "${qemuPkg}/bin/qemu-kvm";
25}