tests/functional/test_kvm.py: Skip if virtualization not supported

The test_kvm test runs the virt board with virtualization=on,
which will fail if run with an accelerator that doesn't
support nested virtualization. Catch the VMLaunchFailure
exception and skip the test if startup failed because
the accelerator can't support virtualization.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20260507194728.2034696-5-peter.maydell@linaro.org

diff --git a/tests/functional/aarch64/test_kvm.py b/tests/functional/aarch64/test_kvm.py
index fed18aba60a7bcef1f4b2160c2c914598e510e88..c977e8c6d2aacf22dbf5fdcba12d281485da8c4d 100755 (executable)
--- a/tests/functional/aarch64/test_kvm.py
+++ b/tests/functional/aarch64/test_kvm.py
@@ -14,6 +14,7 @@
 from qemu_test import Asset
 from qemu_test import exec_command_and_wait_for_pattern as ec_and_wait
 from qemu_test.linuxkernel import LinuxKernelTest
+from qemu.machine.machine import VMLaunchFailure
 
 
 class Aarch64VirtKVMTests(LinuxKernelTest):
@@ -44,7 +45,14 @@ class Aarch64VirtKVMTests(LinuxKernelTest):
                          '-append', kernel_command_line)
         self.vm.add_args("-smp", "2", "-m", "320")
 
-        self.vm.launch()
+        try:
+            self.vm.launch()
+        except VMLaunchFailure as excp:
+            if "does not support providing Virtualization" in excp.output:
+                self.skipTest("accelerator has no virtualization support")
+            else:
+                self.log.info("unhandled launch failure: %s", excp.output)
+                raise excp
 
         self.wait_for_console_pattern('buildroot login:')
         ec_and_wait(self, 'root', '#')