Allow qtests to be ran by subsystem. Some subsystems, such as
migration, have a large number of tests and we could benefit from
being able to access them from make check without having to run the
full set of qtests.

This adds the following make check targets:

make check-qtest-migration

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
---
I did not include check-qtest-<arch>-<subsys> because meson generates a
long line that affects readability.
---
 tests/qtest/meson.build | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build
index 811117d264..c3fe67f78e 100644
--- a/tests/qtest/meson.build
+++ b/tests/qtest/meson.build
@@ -36,6 +36,11 @@ if enable_modules
   qtests_generic += [ 'modules-test' ]
 endif
 
+qtest_subsystems = {
+  'migration-test-smoke': ['migration'],
+  'migration-test': ['migration'],
+}
+
 qtests_pci = \
   (config_all_devices.has_key('CONFIG_VGA') ? ['display-vga-test'] : []) +                  \
   (config_all_devices.has_key('CONFIG_IVSHMEM_DEVICE') ? ['ivshmem-test'] : [])
@@ -434,6 +439,12 @@ foreach dir : target_dirs
         test: executable(test, src, dependencies: deps)
       }
     endif
+
+    suites = ['qtest', 'qtest-' + target_base]
+    foreach subsys: qtest_subsystems.get(test, [])
+      suites += ['qtest-' + subsys]
+    endforeach
+
     test('qtest-@0@/@1@'.format(target_base, test),
          qtest_executables[test],
          depends: [test_deps, qtest_emulator, emulator_modules],
@@ -442,6 +453,6 @@ foreach dir : target_dirs
          protocol: 'tap',
          timeout: slow_qtests.get(test, 60),
          priority: slow_qtests.get(test, 60),
-         suite: ['qtest', 'qtest-' + target_base])
+         suite: suites)
   endforeach
 endforeach
-- 
2.35.3