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|
#!/usr/bin/env bash
# Run VPP in a QEMU VM
# set -o xtrace
set -o nounset
# Arguments:
# $1:- Test Filter
# $2:- Kernel Image
# $3:- Test Data Directory
# $4:- CPU Mask String (e.g. "5,6,7,8")
# $5:- Guest MEM in Gibibytes (e.g. 2G)
if [[ -z "${1:-}" ]]; then
echo "ERROR: A non-empty test selection is required to run
tests in a QEMU VM"
exit 1
fi
TEST=${1:-}
TEST_JOBS=${TEST_JOBS:-1}
# Init RAM disk image to boot the QEMU VM
INITRD=${INITRD:-}
# Ensure test dir
TEST_DATA_DIR=${3:-"/tmp/vpp-vm-tests"}
if [[ ! -d ${TEST_DATA_DIR} ]]; then
mkdir -p ${TEST_DATA_DIR}
fi
# CPU Affinity for taskset
CPU_MASK=${4:-"5,6,7,8"}
IFS=',' read -r -a CPU_MASK_ARRAY <<< ${CPU_MASK}
CPUS=${#CPU_MASK_ARRAY[@]}
# Guest MEM (Default 2G)
MEM=${5:-"2G"}
# Set the QEMU executable for the OS pkg.
os_VENDOR=$(lsb_release -i -s)
if [[ $os_VENDOR =~ (Debian|Ubuntu) ]]; then
os_PACKAGE="deb"
QEMU=${QEMU:-"qemu-system-x86_64"}
else
os_PACKAGE="rpm"
QEMU=${QEMU:-"qemu-kvm"}
fi
# Exit if the ${QEMU} executable is not available
if ! command -v ${QEMU} &> /dev/null; then
echo "Error: ${QEMU} is required, but could not be found."
exit 1
fi
# Download the Generic Linux Kernel, if needed
if [[ -z "${2:-}" ]] || [[ ! -f "${2:-}" ]]; then
if [[ $os_PACKAGE == "deb" ]]; then
PWD=$(pwd)
cd ${TEST_DATA_DIR}
PKG="linux-image-$(uname -r)"
echo "Getting the Linux Kernel image..${PKG}"
apt-get download ${PKG}
dpkg --fsys-tarfile ${PKG}_*.deb | tar xvf - ./boot
KERNEL_BIN=$(ls ${TEST_DATA_DIR}/boot/vmlinuz-*-generic)
cd ${PWD}
else
echo "ERROR: Kernel Image selection is required for RPM pkgs."
exit 1
fi
else
KERNEL_BIN=${2:-}
fi
## Create initrd with 9p drivers, if ${INITRD} is null
DRIVERS_9P=""
if [[ -z "${INITRD}" ]] && [[ ! -d "/etc/initramfs-tools" ]]; then
echo "To boot the QEMU VM, an initial RAM disk with 9p drivers is needed"
echo "Install the initramfs-tools package or set env var INITRD to the RAM disk path"
exit 1
elif [[ -z "${INITRD}" ]]; then
if [[ -f "/etc/initramfs-tools/modules" ]]; then
DRIVERS_9P=$(grep 9p /etc/initramfs-tools/modules | awk '{print $1}' | cut -d$'\n' -f1)
fi
if [[ -z "${DRIVERS_9P}" ]]; then
echo "You'll need to update the file /etc/initramfs-tools/modules with the below 9p drivers"
echo "9p >> /etc/initramfs-tools/modules"
echo "9pnet >> /etc/initramfs-tools/modules"
echo "9pnet_virtio >> /etc/initramfs-tools/modules"
exit 1
fi
# Generate the initramfs image, if the we haven't generated one yet
if ! ls ${TEST_DATA_DIR}/boot/initrd.img-*-generic &> /dev/null; then
echo "Generating a bootable initramfs image in ${TEST_DATA_DIR}/boot/"
update-initramfs -c -k $(uname -r) -b ${TEST_DATA_DIR}/boot >/dev/null 2>&1
echo "Generated the INITRD image"
fi
INITRD=$(ls ${TEST_DATA_DIR}/boot/initrd.img-*-generic)
fi
echo "Using INITRD=${TEST_DATA_DIR}/boot/${INITRD} for booting the QEMU VM"
## Install iperf into ${TEST_DATA_DIR}
IPERF=${TEST_DATA_DIR}/usr/bin/iperf
if [[ ! -x ${IPERF} ]] && [[ $os_PACKAGE == "deb" ]]; then
echo "Installing iperf: ${IPERF}"
PWD=$(pwd)
cd ${TEST_DATA_DIR}
IPRF_PKG="iperf_2.0.5+dfsg1-2_amd64.deb"
wget https://iperf.fr/download/ubuntu/${IPRF_PKG}
dpkg --fsys-tarfile ${IPRF_PKG} | tar xvf -
if [[ -x ${IPERF} ]]; then
echo "${IPERF} installed successfully"
else
echo "ERROR: iperf executable ${IPERF} installation failed"
exit 1
fi
cd ${PWD}
elif [[ ! -x ${IPERF} ]] && [[ $os_PACKAGE != "deb" ]]; then
echo "ERROR: install iperf: ${IPERF} before running QEMU tests"
exit 1
fi
FAILED_DIR=${FAILED_DIR:-"/tmp/vpp-failed-unittests/"}
if [[ ! -d ${FAILED_DIR} ]]; then
mkdir -p ${FAILED_DIR}
fi
HUGEPAGES=${HUGEPAGES:-256}
# Ensure all required Env vars are bound to non-zero values
EnvVarArray=("WS_ROOT=${WS_ROOT:-}"
"RND_SEED=${RND_SEED:-}"
"BR=${BR:-}"
"VENV_PATH=${VENV_PATH:-}"
"VPP_BUILD_DIR=${VPP_BUILD_DIR:-}"
"VPP_BIN=${VPP_BIN:-}"
"VPP_PLUGIN_PATH=${VPP_PLUGIN_PATH:-}"
"VPP_TEST_PLUGIN_PATH=${VPP_TEST_PLUGIN_PATH:-}"
"VPP_INSTALL_PATH=${VPP_INSTALL_PATH:-}"
"LD_LIBRARY_PATH=${LD_LIBRARY_PATH:-}")
for envVar in ${EnvVarArray[*]}; do
var_name=$(echo $envVar | cut -d= -f1)
var_val=$(echo $envVar | cut -d= -f2)
if [[ -z "$var_val" ]]; then
echo "ERROR: Env var: $var_name is not set"
exit 1
fi
done
# Boot QEMU VM and run the test
function run_in_vm {
INIT=$(mktemp -p ${TEST_DATA_DIR})
cat > ${INIT} << _EOF_
#!/bin/bash
mkdir -p /dev/shm
mount -t tmpfs -o rw,nosuid,nodev tmpfs /dev/shm
mount -t devpts -o noexec,nosuid,gid=5,mode=0620 devpts /dev/pts || true
mount -t tmpfs -o "noexec,nosuid,size=10%,mode=0755" tmpfs /run
mount -t 9p /dev/vpp9p ${WS_ROOT}
mount -t 9p tmp9p /tmp
modprobe -a vhost_net
${VENV_PATH}/bin/python3 ${WS_ROOT}/test/run_tests.py --filter=${TEST} --jobs=${TEST_JOBS} \
--failed-dir=${FAILED_DIR} --venv-dir=${VENV_PATH} --vpp-ws-dir=${WS_ROOT} --extended \
--vpp-tag=vpp_debug --cache-vpp-output
poweroff -f
_EOF_
chmod +x ${INIT}
sudo taskset -c ${CPU_MASK} ${QEMU} \
-nodefaults \
-name test_$(basename $INIT) \
-chardev stdio,mux=on,id=char0 \
-mon chardev=char0,mode=readline,pretty=on \
-serial chardev:char0 \
-machine pc,accel=kvm,usb=off,mem-merge=off \
-cpu host \
-smp ${CPUS},sockets=1,cores=${CPUS},threads=1 \
-m ${MEM} \
-no-user-config \
-kernel ${KERNEL_BIN} \
-initrd ${INITRD} \
-fsdev local,id=root9p,path=/,security_model=none,multidevs=remap \
-device virtio-9p-pci,fsdev=root9p,mount_tag=fsRoot \
-virtfs local,path=${WS_ROOT},mount_tag=/dev/vpp9p,security_model=none,id=vpp9p,multidevs=remap \
-virtfs local,path=/tmp,mount_tag=tmp9p,security_model=passthrough,id=tmp9p,multidevs=remap \
-netdev tap,id=net0,vhost=on \
-device virtio-net-pci,netdev=net0,mac=52:54:00:de:64:01 \
-nographic \
-append "ro root=fsRoot rootfstype=9p rootflags=trans=virtio,cache=mmap console=ttyS0 hugepages=${HUGEPAGES} init=${INIT}"
}
run_in_vm
|
