add test of confidential VMs with multiple vCPUs

Signed-off-by: Wojciech Ozga <woz@zurich.ibm.com>

Author: wojciechozga

confidential-vms/linux_vm/overlay/root/this_is_confidential_vm_filesystem

@@ -1 +1 @@
-hello from confidential VM's filesystem
+hello from confidential VM filesystem

confidential-vms/linux_vm/overlay/this_is_confidential_vm_filesystem

@@ -1 +1 @@
-hello from confidential VM's filesystem
+hello from confidential VM filesystem

hypervisor/rootfs/selftest.sh

@@ -5,7 +5,7 @@
 
 # This script runs all tests in harness
 
-declare -a TESTS=("test_attestation")
+declare -a TESTS=("test_attestation" "test_smp")
 
 for i in "${TESTS[@]}"; do
     ./$i.sh 2>&1 > $i.log

hypervisor/rootfs/test_attestation.sh

@@ -20,6 +20,7 @@ $SSH_CMD -p${TVM_PORT} ${TVM_USER}@${TVM_HOST} 'dmesg | grep Secret' > tmp_dmesg
 ATTESTATION_RESULT="$(grep 'Secret=0xc0ffee' tmp_dmesg.log | wc -l)"
 
 kill_confidential_vm
+sleep 5
 
 if [[ "x$ATTESTATION_RESULT" == "x1" ]]; then
     echo "Attestation test succeeded"

hypervisor/rootfs/test_smp.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+# SPDX-FileCopyrightText: 2025 IBM Corporation
+# SPDX-FileContributor: Wojciech Ozga <woz@zurich.ibm.com>, IBM Research - Zurich
+# SPDX-License-Identifier: Apache-2.0
+. common.sh
+
+/root/run_linux_vm_qemu.sh -s=2 -m=256M --daemonize 2>&1 > tmp_run_smp.log &
+sleep 5
+
+TVM_USER="root"
+TVM_HOST="localhost"
+TVM_PORT="$(grep 'SSH port' tmp_run_smp.log | awk -F': ' '{ print $2 }' )"
+echo "TVM's SSH is listening on port: $TVM_PORT"
+
+wait_for_ssh $TVM_USER $TVM_HOST $TVM_PORT
+
+$SSH_CMD -p${TVM_PORT} ${TVM_USER}@${TVM_HOST} 'cat /root/this_is_confidential_vm_filesystem' > tmp_smp_dmesg.log
+RESULT="$(grep 'hello from confidential VM filesystem' tmp_smp_dmesg.log | wc -l)"
+
+kill_confidential_vm
+sleep 5
+
+if [[ "x$RESULT" == "x1" ]]; then
+    echo "SMP test succeeded"
+    exit 0
+else
+    echo "SMP test failed"
+    exit 1
+fi

tools/common.sh

@@ -19,6 +19,15 @@ function wait_for_ssh () {
     done
 }
 
+function kill_users_qemu () {
+    USER="$(whoami)"
+    PID="$(ps aux | grep qemu | grep ${USER} | awk -F' ' '{ print $2  }')"
+    if [ "$PID" != "" ]; then
+        kill -9 $PID
+        wait $PID 2>/dev/null
+    fi
+}
+
 # Usage: kill_qemu "22"
 function kill_qemu () {
     PORT=$1