Commit 55f2cf88 authored Feb 08, 2024 by Thomas Huth Committed by Sean Christopherson Feb 28, 2024

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>

parent 53a43dd4

tools/testing/selftests/kvm/include/kvm_test_harness.h

0 → 100644

+36 −0

Original line number	Diff line number	Diff line
		/* 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 */