automation: add x86_64 test (linux argo)

Add x86_64 hardware test that creates a Xen Argo communication
connection between two PVH domains. In the test, dom0 creates a domU and
listens for messages sent by the domU through Argo.

To accomplish this, build Xen with CONFIG_ARGO=y and create a CI test job.

Update the xilinx x86_64 test script to support the new test, and add
"sync_console" to command line to avoid an issue with console messages
being lost.

Requested-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Victor Lira <victorm.lira@amd.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>

automation/gitlab-ci/build.yaml

@@ -340,6 +340,10 @@ alpine-3.18-gcc-debug:
   variables:
     CONTAINER: alpine:3.18
     BUILD_QEMU_XEN: y
+    EXTRA_XEN_CONFIG: |
+      CONFIG_EXPERT=y
+      CONFIG_UNSUPPORTED=y
+      CONFIG_ARGO=y
 
 debian-bookworm-gcc-debug:
   extends: .gcc-x86-64-build-debug

automation/gitlab-ci/test.yaml

@@ -192,6 +192,22 @@ xilinx-smoke-dom0-x86_64-gcc-debug:
     - *x86-64-test-needs
     - alpine-3.18-gcc-debug
 
+xilinx-smoke-dom0-x86_64-gcc-debug-argo:
+  extends: .xilinx-x86_64
+  script:
+    - ./automation/scripts/xilinx-smoke-dom0-x86_64.sh argo 2>&1 | tee ${LOGFILE}
+  needs:
+    - alpine-3.18-gcc-debug
+    - project: xen-project/hardware/test-artifacts
+      job: x86_64-kernel-linux-6.6.56
+      ref: master
+    - project: xen-project/hardware/test-artifacts
+      job: x86_64-rootfs-alpine-3.18
+      ref: master
+    - project: xen-project/hardware/test-artifacts
+      job: x86_64-argo-linux-6.6.56
+      ref: master
+
 adl-smoke-x86-64-gcc-debug:
   extends: .adl-x86-64
   script:

automation/scripts/xilinx-smoke-dom0-x86_64.sh

@@ -9,6 +9,8 @@ fatal() {
     exit 1
 }
 
+WORKDIR="${PWD}"
+
 # Test parameter defaults.
 TEST="$1"
 PASS_MSG="Test passed: ${TEST}"
@@ -24,9 +26,10 @@ kernel = "/boot/vmlinuz"
 ramdisk = "/boot/initrd-domU"
 extra = "root=/dev/ram0 console=hvc0"
 memory = 512
-vif = [ "bridge=xenbr0", ]
-disk = [ ]
 '
+DOMU_CFG_EXTRA=""
+copy_domU_files () { :; }
+copy_dom0_files () { :; }
 
 # Select test variant.
 if [ "${TEST}" = "ping" ]; then
@@ -39,6 +42,14 @@ done
 echo \"${DOMU_MSG}\"
 "
     DOM0_CMD="
+brctl addbr xenbr0
+brctl addif xenbr0 eth0
+ifconfig eth0 up
+ifconfig xenbr0 up
+ifconfig xenbr0 192.168.0.1
+# get domU console content into test log
+tail -F /var/log/xen/console/guest-domU.log 2>/dev/null | sed -e \"s/^/(domU) /\" &
+xl create /etc/xen/domU.cfg
 set +x
 until grep -q \"${DOMU_MSG}\" /var/log/xen/console/guest-domU.log; do
     sleep 1
@@ -46,6 +57,34 @@ done
 set -x
 echo \"${PASS_MSG}\"
 "
+    DOMU_CFG_EXTRA='
+vif = [ "bridge=xenbr0", ]
+disk = [ ]
+'
+elif [ "${TEST}" = "argo" ]
+then
+    PASS_MSG="TEST: Message from DOMU"
+    XEN_CMD_EXTRA="argo=1,mac-permissive=1"
+    DOMU_CMD="
+insmod /root/xen-argo.ko
+until false
+do
+  echo \"${PASS_MSG}\"
+  sleep 1
+done | argo-exec -p 28333 -d 0 -- /bin/echo
+"
+    DOM0_CMD="
+insmod /root/xen-argo.ko
+xl create /etc/xen/domU.cfg
+argo-exec -l -p 28333 -- /bin/echo
+"
+copy_dom0_files ()
+{
+    cp "${WORKDIR}/binaries/xen-argo.ko" "root/"
+    cp -ar "${WORKDIR}/binaries/lib/"* "usr/local/lib/"
+    cp "${WORKDIR}/binaries/argo-exec" "usr/local/bin/"
+}
+copy_domU_files () { copy_dom0_files; }
 else
     fatal "Unknown test: ${TEST}"
 fi
@@ -54,18 +93,18 @@ fi
 mkdir -p rootfs
 cd rootfs
 tar xzf ../binaries/initrd.tar.gz
-mkdir proc
-mkdir run
-mkdir srv
-mkdir sys
+mkdir proc run srv sys
 rm var/run
 echo "#!/bin/sh
-
+set -x
+export LD_LIBRARY_PATH=/usr/local/lib
+PATH=/usr/local/bin:/usr/local/sbin:\$PATH
 ${DOMU_CMD}
 " > etc/local.d/xen.start
 chmod +x etc/local.d/xen.start
 echo "rc_verbose=yes" >> etc/rc.conf
 sed -i -e 's/^Welcome/domU \0/' etc/issue
+copy_domU_files
 find . | cpio -H newc -o | gzip > ../binaries/domU-rootfs.cpio.gz
 cd ..
 rm -rf rootfs
@@ -74,37 +113,24 @@ rm -rf rootfs
 mkdir -p rootfs
 cd rootfs
 tar xzf ../binaries/initrd.tar.gz
-mkdir boot
-mkdir proc
-mkdir run
-mkdir srv
-mkdir sys
+mkdir boot proc run srv sys
 rm var/run
 cp -ar ../binaries/dist/install/* .
 echo "#!/bin/bash
-
+set -x
 export LD_LIBRARY_PATH=/usr/local/lib
 bash /etc/init.d/xencommons start
-
-brctl addbr xenbr0
-brctl addif xenbr0 eth0
-ifconfig eth0 up
-ifconfig xenbr0 up
-ifconfig xenbr0 192.168.0.1
-
-# get domU console content into test log
-tail -F /var/log/xen/console/guest-domU.log 2>/dev/null | sed -e \"s/^/(domU) /\" &
-xl create /etc/xen/domU.cfg
 ${DOM0_CMD}
 " > etc/local.d/xen.start
 chmod +x etc/local.d/xen.start
-echo "${DOMU_CFG}" > etc/xen/domU.cfg
+echo "${DOMU_CFG}${DOMU_CFG_EXTRA}" > etc/xen/domU.cfg
 echo "rc_verbose=yes" >> etc/rc.conf
 echo "XENCONSOLED_TRACE=all" >> etc/default/xencommons
 echo "QEMU_XEN=/bin/false" >> etc/default/xencommons
 mkdir -p var/log/xen/console
 cp ../binaries/bzImage boot/vmlinuz
 cp ../binaries/domU-rootfs.cpio.gz boot/initrd-domU
+copy_dom0_files
 find . | cpio -H newc -o | gzip > ../binaries/dom0-rootfs.cpio.gz
 cd ..
 
@@ -116,7 +142,7 @@ cp -f binaries/bzImage ${TFTP}/${TEST_BOARD}/vmlinuz
 cp -f binaries/dom0-rootfs.cpio.gz ${TFTP}/${TEST_BOARD}/initrd-dom0
 echo "
 net_default_server=10.0.6.1
-multiboot2 (tftp)/${TEST_BOARD}/xen ${XEN_CMDLINE}
+multiboot2 (tftp)/${TEST_BOARD}/xen ${XEN_CMDLINE} sync_console
 module2 (tftp)/${TEST_BOARD}/vmlinuz console=hvc0 root=/dev/ram0 earlyprintk=xen
 module2 (tftp)/${TEST_BOARD}/initrd-dom0
 boot