diff --git a/integration_tests/tests/boot.rs b/integration_tests/tests/boot.rs
index 877610c2c3..4305990197 100644
--- a/integration_tests/tests/boot.rs
+++ b/integration_tests/tests/boot.rs
@@ -6,7 +6,13 @@ use fixture::TestVm;
 
 #[test]
 fn boot_test_vm() {
-    let mut vm = TestVm::new(&[], false).unwrap();
+    let mut vm = TestVm::new(&[], false /* debug */, false /* o_direct */).unwrap();
+    assert_eq!(vm.exec_in_guest("echo 42").unwrap().trim(), "42");
+}
+
+#[test]
+fn boot_test_vm_odirect() {
+    let mut vm = TestVm::new(&[], false /* debug */, true /* o_direct */).unwrap();
     assert_eq!(vm.exec_in_guest("echo 42").unwrap().trim(), "42");
 }
 
@@ -14,7 +20,7 @@ fn boot_test_vm() {
 fn boot_test_suspend_resume() {
     // There is no easy way for us to check if the VM is actually suspended. But at
     // least exercise the code-path.
-    let mut vm = TestVm::new(&[], false).unwrap();
+    let mut vm = TestVm::new(&[], false /* debug */, false /*o_direct */).unwrap();
     vm.suspend().unwrap();
     vm.resume().unwrap();
     assert_eq!(vm.exec_in_guest("echo 42").unwrap().trim(), "42");
diff --git a/integration_tests/tests/fixture.rs b/integration_tests/tests/fixture.rs
index c1b762db7f..94b2ed2d18 100644
--- a/integration_tests/tests/fixture.rs
+++ b/integration_tests/tests/fixture.rs
@@ -230,16 +230,21 @@ impl TestVm {
     }
 
     /// Configures the VM kernel and rootfs to load from the guest_under_test assets.
-    fn configure_kernel(command: &mut Command) {
+    fn configure_kernel(command: &mut Command, o_direct: bool) {
+        let rootfs_and_option = format!(
+            "{}{}",
+            rootfs_path().to_str().unwrap(),
+            if o_direct { ",o_direct=true" } else { "" }
+        );
         command
-            .args(&["--root", rootfs_path().to_str().unwrap()])
+            .args(&["--root", &rootfs_and_option])
             .args(&["--params", "init=/bin/delegate"])
             .arg(kernel_path());
     }
 
     /// Instanciate a new crosvm instance. The first call will trigger the download of prebuilt
     /// files if necessary.
-    pub fn new(additional_arguments: &[&str], debug: bool) -> Result<TestVm> {
+    pub fn new(additional_arguments: &[&str], debug: bool, o_direct: bool) -> Result<TestVm> {
         static PREP_ONCE: Once = Once::new();
         PREP_ONCE.call_once(|| TestVm::initialize_once());
 
@@ -258,7 +263,7 @@ impl TestVm {
         command.args(&["--socket", &control_socket_path.to_str().unwrap()]);
         command.args(additional_arguments);
 
-        TestVm::configure_kernel(&mut command);
+        TestVm::configure_kernel(&mut command, o_direct);
 
         println!("$ {:?}", command);
         if !debug {