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tests: Add VFIO integration test

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The VFIO integration test first boots a QEMU guest and then assigns the
QEMU virtio-pci networking device into a nested cloud-hypervisor guest.
We then check that we can ssh into the nested guest and verify that it's
running with the right kernel command line.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz 2019-07-19 10:26:13 +02:00
parent 4d16ca8ae7
commit 5ae3144f5b
4 changed files with 235 additions and 13 deletions
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43
scripts/run_integration_tests.sh
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@ -14,6 +14,14 @@ if [ ! -f "$FW" ]; then
popd
fi
OVMF_URL="https://cdn.download.clearlinux.org/image/OVMF.fd"
OVMF="$WORKLOADS_DIR/OVMF.fd"
if [ ! -f "$OVMF" ]; then
pushd $WORKLOADS_DIR
wget --quiet $OVMF_URL
popd
fi
OS_IMAGE_NAME="clear-29810-cloud.img"
OS_IMAGE_URL="https://cloudhypervisorstorage.blob.core.windows.net/images/$OS_IMAGE_NAME.xz"
OS_IMAGE="$WORKLOADS_DIR/$OS_IMAGE_NAME"
@ -86,7 +94,42 @@ if [ ! -d "$SHARED_DIR" ]; then
echo "bar" > "$SHARED_DIR/file3"
fi
VFIO_DIR="$WORKLOADS_DIR/vfio"
if [ ! -d "$VFIO_DIR" ]; then
mkdir -p $VFIO_DIR
cp $OS_IMAGE $VFIO_DIR
cp $FW $VFIO_DIR
cp $VMLINUX_IMAGE $VFIO_DIR
fi
# VFIO test network setup.
# We reserve a different IP class for it: 172.16.0.0/24.
sudo ip link add name vfio-br0 type bridge
sudo ip link set vfio-br0 up
sudo ip addr add 172.16.0.1/24 dev vfio-br0
sudo ip tuntap add vfio-tap0 mode tap
sudo ip link set vfio-tap0 master vfio-br0
sudo ip link set vfio-tap0 up
sudo ip tuntap add vfio-tap1 mode tap
sudo ip link set vfio-tap1 master vfio-br0
sudo ip link set vfio-tap1 up
cargo build
sudo setcap cap_net_admin+ep target/debug/cloud-hypervisor
# We always copy a fresh version of our binary for our L2 guest.
cp target/debug/cloud-hypervisor $VFIO_DIR
# We need qemu to have NET_ADMIN as well.
sudo setcap cap_net_admin+ep /usr/bin/qemu-system-x86_64
sudo adduser $USER kvm
newgrp kvm << EOF
cargo test --features "integration_tests"
EOF
# Tear VFIO test network down
sudo ip link del vfio-br0
sudo ip link del vfio-tap0
sudo ip link del vfio-tap1