1 files changed, 35 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/x86_64/get_msr_index_features.c b/tools/testing/selftests/kvm/x86_64/get_msr_index_features.c
new file mode 100644
index 000000000000..d09b3cbcadc6
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86_64/get_msr_index_features.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test that KVM_GET_MSR_INDEX_LIST and
+ * KVM_GET_MSR_FEATURE_INDEX_LIST work as intended
+ *
+ * Copyright (C) 2020, Red Hat, Inc.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+
+int main(int argc, char *argv[])
+{
+	const struct kvm_msr_list *feature_list;
+	int i;
+
+	/*
+	 * Skip the entire test if MSR_FEATURES isn't supported, other tests
+	 * will cover the "regular" list of MSRs, the coverage here is purely
+	 * opportunistic and not interesting on its own.
+	 */
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_GET_MSR_FEATURES));
+
+	(void)kvm_get_msr_index_list();
+
+	feature_list = kvm_get_feature_msr_index_list();
+	for (i = 0; i < feature_list->nmsrs; i++)
+		kvm_get_feature_msr(feature_list->indices[i]);
+}