mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-15 22:36:23 +01:00
65 lines
2.6 KiB
Nix
65 lines
2.6 KiB
Nix
# QEMU-related utilities shared between various Nix expressions.
|
|
{ lib, pkgs }:
|
|
|
|
let
|
|
zeroPad = n:
|
|
lib.optionalString (n < 16) "0" +
|
|
(if n > 255
|
|
then throw "Can't have more than 255 nets or nodes!"
|
|
else lib.toHexString n);
|
|
in
|
|
|
|
rec {
|
|
qemuNicMac = net: machine: "52:54:00:12:${zeroPad net}:${zeroPad machine}";
|
|
|
|
qemuNICFlags = nic: net: machine:
|
|
[
|
|
"-device virtio-net-pci,netdev=vlan${toString nic},mac=${qemuNicMac net machine}"
|
|
''-netdev vde,id=vlan${toString nic},sock="$QEMU_VDE_SOCKET_${toString net}"''
|
|
];
|
|
|
|
qemuSerialDevice =
|
|
if with pkgs.stdenv.hostPlatform; isx86 || isLoongArch64 || isMips64 || isRiscV then "ttyS0"
|
|
else if (with pkgs.stdenv.hostPlatform; isAarch || isPower) then "ttyAMA0"
|
|
else throw "Unknown QEMU serial device for system '${pkgs.stdenv.hostPlatform.system}'";
|
|
|
|
qemuBinary = qemuPkg:
|
|
let
|
|
hostStdenv = qemuPkg.stdenv;
|
|
hostSystem = hostStdenv.system;
|
|
guestSystem = pkgs.stdenv.hostPlatform.system;
|
|
|
|
linuxHostGuestMatrix = {
|
|
x86_64-linux = "${qemuPkg}/bin/qemu-kvm -cpu max";
|
|
armv7l-linux = "${qemuPkg}/bin/qemu-system-arm -machine virt,accel=kvm:tcg -cpu max";
|
|
aarch64-linux = "${qemuPkg}/bin/qemu-system-aarch64 -machine virt,gic-version=max,accel=kvm:tcg -cpu max";
|
|
powerpc64le-linux = "${qemuPkg}/bin/qemu-system-ppc64 -machine powernv";
|
|
powerpc64-linux = "${qemuPkg}/bin/qemu-system-ppc64 -machine powernv";
|
|
x86_64-darwin = "${qemuPkg}/bin/qemu-kvm -cpu max";
|
|
};
|
|
otherHostGuestMatrix = {
|
|
aarch64-darwin = {
|
|
aarch64-linux = "${qemuPkg}/bin/qemu-system-aarch64 -machine virt,gic-version=2,accel=hvf:tcg -cpu max";
|
|
inherit (otherHostGuestMatrix.x86_64-darwin) x86_64-linux;
|
|
};
|
|
x86_64-darwin = {
|
|
x86_64-linux = "${qemuPkg}/bin/qemu-system-x86_64 -machine type=q35,accel=hvf:tcg -cpu max";
|
|
};
|
|
};
|
|
|
|
throwUnsupportedHostSystem =
|
|
let
|
|
supportedSystems = [ "linux" ] ++ (lib.attrNames otherHostGuestMatrix);
|
|
in
|
|
throw "Unsupported host system ${hostSystem}, supported: ${lib.concatStringsSep ", " supportedSystems}";
|
|
throwUnsupportedGuestSystem = guestMap:
|
|
throw "Unsupported guest system ${guestSystem} for host ${hostSystem}, supported: ${lib.concatStringsSep ", " (lib.attrNames guestMap)}";
|
|
in
|
|
if hostStdenv.isLinux then
|
|
linuxHostGuestMatrix.${guestSystem} or "${qemuPkg}/bin/qemu-kvm"
|
|
else
|
|
let
|
|
guestMap = (otherHostGuestMatrix.${hostSystem} or throwUnsupportedHostSystem);
|
|
in
|
|
(guestMap.${guestSystem} or (throwUnsupportedGuestSystem guestMap));
|
|
}
|