diff --git a/nixos/lib/qemu-common.nix b/nixos/lib/qemu-common.nix index 5e620357b821..3f4d674e9a93 100644 --- a/nixos/lib/qemu-common.nix +++ b/nixos/lib/qemu-common.nix @@ -23,12 +23,42 @@ rec { else if (with pkgs.stdenv.hostPlatform; isAarch || isPower) then "ttyAMA0" else throw "Unknown QEMU serial device for system '${pkgs.stdenv.hostPlatform.system}'"; - qemuBinary = qemuPkg: { - x86_64-linux = "${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 = "${qemuPkg}/bin/qemu-kvm -cpu max"; - }.${pkgs.stdenv.hostPlatform.system} or "${qemuPkg}/bin/qemu-kvm"; + qemuBinary = qemuPkg: + let + hostStdenv = qemuPkg.stdenv; + hostSystem = hostStdenv.system; + guestSystem = pkgs.stdenv.hostPlatform.system; + + linuxHostGuestMatrix = { + x86_64-linux = "${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"; + }; + 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)); }