tests/avocado: use snapshot=on in kvm_xen_guest
This ensures the rootfs is never permanently changed as we don't need
persistence between tests anyway.
Message-Id: <20240103173349.398526-3-alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
diff --git a/tests/avocado/kvm_xen_guest.py b/tests/avocado/kvm_xen_guest.py
index 5391283..f8cb458 100644
--- a/tests/avocado/kvm_xen_guest.py
+++ b/tests/avocado/kvm_xen_guest.py
@@ -59,7 +59,7 @@
def run_and_check(self):
self.vm.add_args('-kernel', self.kernel_path,
'-append', self.kernel_params,
- '-drive', f"file={self.rootfs},if=none,format=raw,id=drv0",
+ '-drive', f"file={self.rootfs},if=none,snapshot=on,format=raw,id=drv0",
'-device', 'xen-disk,drive=drv0,vdev=xvda',
'-device', 'virtio-net-pci,netdev=unet',
'-netdev', 'user,id=unet,hostfwd=:127.0.0.1:0-:22')
