scripts/device-crash-test: Add a parameter to run with TCG only

We're currently facing the problem that the device-crash-test script
runs twice as long in the CI when a runner supports KVM - which sometimes
results in a timeout of the CI job. To get a more deterministic runtime
here, add an option to the script that allows to run it with TCG only.

Reported-by: Eldon Stegall <eldon-qemu@eldondev.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230414145845.456145-3-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230424092249.58552-6-alex.bennee@linaro.org>

.gitlab-ci.d/buildtest.yml

@@ -103,7 +103,7 @@ crash-test-debian:
   script:
     - cd build
     - make NINJA=":" check-venv
-    - tests/venv/bin/python3 scripts/device-crash-test -q ./qemu-system-i386
+    - tests/venv/bin/python3 scripts/device-crash-test -q --tcg-only ./qemu-system-i386
 
 build-system-fedora:
   extends:

scripts/device-crash-test

@@ -397,7 +397,7 @@ def binariesToTest(args, testcase):
 
 
 def accelsToTest(args, testcase):
-    if getBinaryInfo(args, testcase['binary']).kvm_available:
+    if getBinaryInfo(args, testcase['binary']).kvm_available and not args.tcg_only:
         yield 'kvm'
     yield 'tcg'
 
@@ -510,6 +510,8 @@ def main():
                         help="Full mode: test cases that are expected to fail")
     parser.add_argument('--strict', action='store_true', dest='strict',
                         help="Treat all warnings as fatal")
+    parser.add_argument('--tcg-only', action='store_true', dest='tcg_only',
+                        help="Only test with TCG accelerator")
     parser.add_argument('qemu', nargs='*', metavar='QEMU',
                         help='QEMU binary to run')
     args = parser.parse_args()