test: Add virtio-pmem integration tests

Add 2 integration tests to validate virtio-pmem works as expected.
One test takes care of checking the ability to read and write to this
persistent memory from the guest, and validates that the data is
carried over the virtualization boundary.
The other test ensures the VM can be booted directly from an image
that would be passed through virtio-pmem.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>

scripts/run_integration_tests.sh

@@ -24,6 +24,14 @@ if [ ! -f "$OS_IMAGE" ]; then
     popd
 fi
 
+OS_RAW_IMAGE_NAME="clear-29810-cloud-raw.img"
+OS_RAW_IMAGE="$WORKLOADS_DIR/$OS_RAW_IMAGE_NAME"
+if [ ! -f "$OS_RAW_IMAGE" ]; then
+    pushd $WORKLOADS_DIR
+    qemu-img convert -p -f qcow2 -O raw $OS_IMAGE_NAME $OS_RAW_IMAGE_NAME
+    popd
+fi
+
 # Build generic kernel
 VMLINUX_IMAGE="$WORKLOADS_DIR/vmlinux"
 BZIMAGE_IMAGE="$WORKLOADS_DIR/bzImage"