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Use only one build of qemu in VM tests

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Previously we were using two or three (qemu_kvm, qemu_test, and
qemu_test with a different dbus when minimal.nix is included).

(cherry picked from commit 8bfa4ce82e)
This commit is contained in:
Eelco Dolstra 2016-12-15 14:05:54 +01:00
parent aad5d1f9a7
commit f173da375d
No known key found for this signature in database
GPG Key ID: 8170B4726D7198DE
3 changed files with 11 additions and 6 deletions
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3
nixos/lib/build-vms.nix
View File

@ -9,6 +9,8 @@ rec {
inherit pkgs;
qemu = pkgs.qemu_test;
# Build a virtual network from an attribute set `{ machine1 =
# config1; ... machineN = configN; }', where `machineX' is the
@ -27,6 +29,7 @@ rec {
[ ../modules/virtualisation/qemu-vm.nix
../modules/testing/test-instrumentation.nix # !!! should only get added for automated test runs
{ key = "no-manual"; services.nixosManual.enable = false; }
{ key = "qemu"; system.build.qemu = qemu; }
] ++ optional minimal ../modules/testing/minimal-kernel.nix;
extraArgs = { inherit nodes; };
};

2
nixos/lib/testing.nix
View File

@ -29,7 +29,7 @@ rec {
cp ${./test-driver/Logger.pm} $libDir/Logger.pm
wrapProgram $out/bin/nixos-test-driver \
--prefix PATH : "${lib.makeBinPath [ qemu_test vde2 netpbm coreutils ]}" \
--prefix PATH : "${lib.makeBinPath [ qemu vde2 netpbm coreutils ]}" \
--prefix PERL5LIB : "${with perlPackages; lib.makePerlPath [ TermReadLineGnu XMLWriter IOTty FileSlurp ]}:$out/lib/perl5/site_perl"
'';
};

12
nixos/modules/virtualisation/qemu-vm.nix
View File

@ -13,6 +13,8 @@ with lib;
let
qemu = config.system.build.qemu or pkgs.qemu_test;
vmName =
if config.networking.hostName == ""
then "noname"
@ -32,7 +34,7 @@ let
NIX_DISK_IMAGE=$(readlink -f ''${NIX_DISK_IMAGE:-${config.virtualisation.diskImage}})
if ! test -e "$NIX_DISK_IMAGE"; then
${pkgs.qemu_kvm}/bin/qemu-img create -f qcow2 "$NIX_DISK_IMAGE" \
${qemu}/bin/qemu-img create -f qcow2 "$NIX_DISK_IMAGE" \
${toString config.virtualisation.diskSize}M || exit 1
fi
@ -47,7 +49,7 @@ let
${if cfg.useBootLoader then ''
# Create a writable copy/snapshot of the boot disk.
# A writable boot disk can be booted from automatically.
${pkgs.qemu_kvm}/bin/qemu-img create -f qcow2 -b ${bootDisk}/disk.img $TMPDIR/disk.img || exit 1
${qemu}/bin/qemu-img create -f qcow2 -b ${bootDisk}/disk.img $TMPDIR/disk.img || exit 1
${if cfg.useEFIBoot then ''
# VM needs a writable flash BIOS.
@ -63,14 +65,14 @@ let
extraDisks=""
${flip concatMapStrings cfg.emptyDiskImages (size: ''
if ! test -e "empty$idx.qcow2"; then
${pkgs.qemu_kvm}/bin/qemu-img create -f qcow2 "empty$idx.qcow2" "${toString size}M"
${qemu}/bin/qemu-img create -f qcow2 "empty$idx.qcow2" "${toString size}M"
fi
extraDisks="$extraDisks -drive index=$idx,file=$(pwd)/empty$idx.qcow2,if=${cfg.qemu.diskInterface},werror=report"
idx=$((idx + 1))
'')}
# Start QEMU.
exec ${pkgs.qemu_test}/bin/qemu-kvm \
exec ${qemu}/bin/qemu-kvm \
-name ${vmName} \
-m ${toString config.virtualisation.memorySize} \
${optionalString (pkgs.stdenv.system == "x86_64-linux") "-cpu kvm64"} \
@ -121,7 +123,7 @@ let
mkdir $out
diskImage=$out/disk.img
bootFlash=$out/bios.bin
${pkgs.qemu_kvm}/bin/qemu-img create -f qcow2 $diskImage "40M"
${qemu}/bin/qemu-img create -f qcow2 $diskImage "40M"
${if cfg.useEFIBoot then ''
cp ${pkgs.OVMF-CSM}/FV/OVMF.fd $bootFlash
chmod 0644 $bootFlash