stdlib,configs: Adding a config to run GAPBS using stdlib.

This change adds a config file to execute GAPBS benchmarks using
gem5 stdlib. It also adds a new test for the same.

Signed-off-by: Kaustav Goswami <kggoswami@ucdavis.edu>
Change-Id: I10326cace4e6fa160e02e479fb4443277af3966f
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/53023
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>

tests/gem5/gem5_library_example_tests/test_gem5_library_examples.py

@@ -137,3 +137,23 @@ if os.access("/dev/kvm", mode=os.R_OK | os.W_OK):
         length=constants.long_tag,
     )
 
+if os.access("/dev/kvm", mode=os.R_OK | os.W_OK):
+    # The x86-gapbs-benchmarks uses KVM cores, this test will therefore only
+    # be run on systems that support KVM.
+    gem5_verify_config(
+        name="test-gem5-library-example-x86-gapbs-benchmarks",
+        fixtures=(),
+        verifiers=(),
+        config=joinpath(
+            config.base_dir,
+            "configs",
+            "example",
+            "gem5_library",
+            "x86-gapbs-benchmarks.py",
+        ),
+        config_args=["--benchmark","bfs","--synthetic","1","--size","1"],
+        valid_isas=(constants.x86_tag,),
+        protocol="MESI_Two_Level",
+        valid_hosts=constants.supported_hosts,
+        length=constants.long_tag,
+    )