[PATCH v2 0/7] Use TAP in some more x86 KVM selftests

Thomas Huth
2023-10-05T14:59:37Z

Here's a follow-up from my RFC series last year:

https://lore.kernel.org/lkml/20221004093131.40392-1-thuth@redhat.com/T/

and from v1 earlier this year:

https://lore.kernel.org/kvm/20230712075910.22480-1-thuth@redhat.com/

Basic idea of this series is now to use the kselftest_harness.h
framework to get TAP output in the tests, so that it is easier
for the user to see what is going on, and e.g. to be able to
detect whether a certain test is part of the test binary or not
(which is useful when tests get extended in the course of time).

v2:
- Dropped the "Rename the ASSERT_EQ macro" patch (already merged)
- Split the fixes in the sync_regs_test into separate patches
(see the first two patches)
- Introduce the KVM_ONE_VCPU_TEST_SUITE() macro as suggested
by Sean (see third patch) and use it in the following patches
- Add a new patch to convert vmx_pmu_caps_test.c, too

Thomas Huth (7):
KVM: selftests: x86: sync_regs_test: Use vcpu_run() where appropriate
KVM: selftests: x86: sync_regs_test: Get regs structure before
modifying it
KVM: selftests: Add a macro to define a test with one vcpu
KVM: selftests: x86: Use TAP interface in the sync_regs test
KVM: selftests: x86: Use TAP interface in the fix_hypercall test
KVM: selftests: x86: Use TAP interface in the vmx_pmu_caps test
KVM: selftests: x86: Use TAP interface in the userspace_msr_exit test

.../selftests/kvm/include/kvm_test_harness.h | 35 +++++
.../selftests/kvm/x86_64/fix_hypercall_test.c | 27 ++--
.../selftests/kvm/x86_64/sync_regs_test.c | 121 +++++++++++++-----
.../kvm/x86_64/userspace_msr_exit_test.c | 19 +--
.../selftests/kvm/x86_64/vmx_pmu_caps_test.c | 50 ++------
5 files changed, 160 insertions(+), 92 deletions(-)
create mode 100644 tools/testing/selftests/kvm/include/kvm_test_harness.h

--
2.41.0