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authorThomas Huth <thuth@redhat.com>2024-02-08 23:48:40 +0300
committerSean Christopherson <seanjc@google.com>2024-02-28 23:58:12 +0300
commit55f2cf88486cdc504176d4c5ebccdb65ea4be161 (patch)
treee17793525f99f4f8f48f19b37b7dfa0969ac200b /tools/testing/selftests/kvm/include
parent53a43dd48f8e5e9cc046f14506a11250efc46bf6 (diff)
downloadlinux-55f2cf88486cdc504176d4c5ebccdb65ea4be161.tar.xz
KVM: selftests: Add a macro to define a test with one vcpu
Most tests are currently not giving any proper output for the user to see how much sub-tests have already been run, or whether new sub-tests are part of a binary or not. So it would be good to support TAP output in the KVM selftests. There is already a nice framework for this in the kselftest_harness.h header which we can use. But since we also need a vcpu in most KVM selftests, it also makes sense to introduce our own wrapper around this which takes care of creating a VM with one vcpu, so we don't have to repeat this boilerplate in each and every test. Thus let's introduce a KVM_ONE_VCPU_TEST() macro here which takes care of this. Suggested-by: Sean Christopherson <seanjc@google.com> Link: https://lore.kernel.org/all/Y2v+B3xxYKJSM%2FfH@google.com/ Signed-off-by: Thomas Huth <thuth@redhat.com> Link: https://lore.kernel.org/r/20240208204844.119326-5-thuth@redhat.com Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'tools/testing/selftests/kvm/include')
-rw-r--r--tools/testing/selftests/kvm/include/kvm_test_harness.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/include/kvm_test_harness.h b/tools/testing/selftests/kvm/include/kvm_test_harness.h
new file mode 100644
index 000000000000..8f7c6858e8e2
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/kvm_test_harness.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Macros for defining a KVM test
+ *
+ * Copyright (C) 2022, Google LLC.
+ */
+
+#ifndef SELFTEST_KVM_TEST_HARNESS_H
+#define SELFTEST_KVM_TEST_HARNESS_H
+
+#include "kselftest_harness.h"
+
+#define KVM_ONE_VCPU_TEST_SUITE(name) \
+ FIXTURE(name) { \
+ struct kvm_vcpu *vcpu; \
+ }; \
+ \
+ FIXTURE_SETUP(name) { \
+ (void)vm_create_with_one_vcpu(&self->vcpu, NULL); \
+ } \
+ \
+ FIXTURE_TEARDOWN(name) { \
+ kvm_vm_free(self->vcpu->vm); \
+ }
+
+#define KVM_ONE_VCPU_TEST(suite, test, guestcode) \
+static void __suite##_##test(struct kvm_vcpu *vcpu); \
+ \
+TEST_F(suite, test) \
+{ \
+ vcpu_arch_set_entry_point(self->vcpu, guestcode); \
+ __suite##_##test(self->vcpu); \
+} \
+static void __suite##_##test(struct kvm_vcpu *vcpu)
+
+#endif /* SELFTEST_KVM_TEST_HARNESS_H */