automation: introduce a dom0less test run on Xilinx hardware

The test prepares dom0 and domU binaries and boot artifacts, similarly
to the existing QEMU test. (TBD: share preparation steps with the
regular QEMU tests.)

However, instead of running the test inside QEMU as usual, it copies
the binaries to the tftp server root, triggers a Xilinx ZCU102 board
reboot, and connects to the real serial of the board.

Only run the job on protected branches with XILINX_JOBS set to true (the
"master" and "staging" on gitlab.com/xen-project/xen qualify).

Signed-off-by: Stefano Stabellini <stefano.stabellini@amd.com>
Reviewed-by: Michal Orzel <michal.orzel@amd.com>

automation/gitlab-ci/test.yaml

@@ -67,6 +67,23 @@
   tags:
     - x86_64
 
+.xilinx-arm64:
+  extends: .test-jobs-common
+  variables:
+    CONTAINER: ubuntu:xenial-xilinx
+    LOGFILE: qemu-smoke-xilinx.log
+  artifacts:
+    paths:
+      - smoke.serial
+      - '*.log'
+      - '*.dtb'
+    when: always
+  only:
+    variables:
+      - $XILINX_JOBS == "true" && $CI_COMMIT_REF_PROTECTED == "true"
+  tags:
+    - xilinx
+
 # Test jobs
 build-each-commit-gcc:
   extends: .test-jobs-common
@@ -85,6 +102,14 @@ build-each-commit-gcc:
   tags:
     - x86_64
 
+xilinx-smoke-dom0less-arm64-gcc:
+  extends: .xilinx-arm64
+  script:
+    - ./automation/scripts/xilinx-smoke-dom0less-arm64.sh 2>&1 | tee ${LOGFILE}
+  needs:
+    - *arm64-test-needs
+    - alpine-3.12-gcc-arm64
+
 qemu-smoke-dom0-arm64-gcc:
   extends: .qemu-arm64
   script:

automation/scripts/xilinx-smoke-dom0less-arm64.sh

@@ -0,0 +1,122 @@
+#!/bin/bash
+
+set -ex
+
+test_variant=$1
+
+if [ -z "${test_variant}" ]; then
+    passed="ping test passed"
+    domU_check="
+until ifconfig eth0 192.168.0.2 &> /dev/null && ping -c 10 192.168.0.1; do
+    sleep 30
+done
+echo \"${passed}\"
+"
+fi
+
+# DomU
+mkdir -p rootfs
+cd rootfs
+tar xzf ../binaries/initrd.tar.gz
+mkdir proc
+mkdir run
+mkdir srv
+mkdir sys
+rm var/run
+echo "#!/bin/sh
+
+${domU_check}
+/bin/sh" > etc/local.d/xen.start
+chmod +x etc/local.d/xen.start
+echo "rc_verbose=yes" >> etc/rc.conf
+find . | cpio -H newc -o | gzip > ../binaries/domU-rootfs.cpio.gz
+cd ..
+rm -rf rootfs
+
+# DOM0 rootfs
+mkdir -p rootfs
+cd rootfs
+tar xzf ../binaries/initrd.tar.gz
+mkdir proc
+mkdir run
+mkdir srv
+mkdir sys
+rm var/run
+cp -ar ../binaries/dist/install/* .
+
+echo "#!/bin/bash
+
+export LD_LIBRARY_PATH=/usr/local/lib
+bash /etc/init.d/xencommons start
+
+/usr/local/lib/xen/bin/init-dom0less
+
+brctl addbr xenbr0
+brctl addif xenbr0 eth0
+ifconfig eth0 up
+ifconfig xenbr0 up
+ifconfig xenbr0 192.168.0.1
+
+xl network-attach 1 type=vif
+${dom0_check}
+" > etc/local.d/xen.start
+chmod +x etc/local.d/xen.start
+echo "rc_verbose=yes" >> etc/rc.conf
+find . | cpio -H newc -o | gzip > ../binaries/dom0-rootfs.cpio.gz
+cd ..
+
+
+TFTP=/scratch/gitlab-runner/tftp
+START=`pwd`
+
+# ImageBuilder
+echo 'MEMORY_START="0"
+MEMORY_END="0x7ff00000"
+
+DEVICE_TREE="mpsoc_smmu.dtb"
+XEN="xen"
+DOM0_KERNEL="Image"
+DOM0_RAMDISK="dom0-rootfs.cpio.gz"
+XEN_CMD="console=dtuart dtuart=serial0 dom0_mem=1024M"
+
+NUM_DOMUS=1
+DOMU_KERNEL[0]="Image"
+DOMU_RAMDISK[0]="domU-rootfs.cpio.gz"
+DOMU_MEM[0]="1024"
+
+LOAD_CMD="tftpb"
+UBOOT_SOURCE="boot.source"
+UBOOT_SCRIPT="boot.scr"' > $TFTP/config
+
+cp -f binaries/xen $TFTP/
+cp -f binaries/Image $TFTP/
+cp -f binaries/dom0-rootfs.cpio.gz $TFTP/
+cp -f binaries/domU-rootfs.cpio.gz $TFTP/
+# export dtb to artifacts
+cp $TFTP/mpsoc_smmu.dtb .
+
+rm -rf imagebuilder
+git clone https://gitlab.com/ViryaOS/imagebuilder
+bash imagebuilder/scripts/uboot-script-gen -t tftp -d $TFTP/ -c $TFTP/config
+
+# restart the board
+cd /scratch/gitlab-runner
+bash zcu102.sh 2
+sleep 5
+bash zcu102.sh 1
+sleep 5
+cd $START
+
+# connect to serial
+set +e
+stty -F /dev/ttyUSB0 115200
+timeout -k 1 120 nohup sh -c "cat /dev/ttyUSB0 | tee smoke.serial"
+
+# stop the board
+cd /scratch/gitlab-runner
+bash zcu102.sh 2
+cd $START
+
+set -e
+(grep -q "^Welcome to Alpine Linux" smoke.serial && grep -q "${passed}" smoke.serial) || exit 1
+exit 0