On 2024-12-16 10:21, Christoph Schlameuss wrote:
Add a selftests for the interrupt routing configuration when using
ucontrol VMs.
Calling the test may trigger a null pointer dereferences on kernels not
containing the fixes in this patch series.
Signed-off-by: Christoph Schlameuss <schlameuss@xxxxxxxxxxxxx>
Reviewed-by: Hariharan Mari <hari55@xxxxxxxxxxxxx>
---
.../selftests/kvm/s390x/ucontrol_test.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/tools/testing/selftests/kvm/s390x/ucontrol_test.c
b/tools/testing/selftests/kvm/s390x/ucontrol_test.c
index b003abda8495..8f306395696e 100644
--- a/tools/testing/selftests/kvm/s390x/ucontrol_test.c
+++ b/tools/testing/selftests/kvm/s390x/ucontrol_test.c
@@ -783,4 +783,23 @@ TEST_F(uc_kvm, uc_flic_attrs)
close(cd.fd);
}
+TEST_F(uc_kvm, uc_set_gsi_routing)
+{
+ struct kvm_irq_routing *routing = kvm_gsi_routing_create();
+ struct kvm_irq_routing_entry ue = {
+ .type = KVM_IRQ_ROUTING_S390_ADAPTER,
+ .gsi = 1,
+ .u.adapter = (struct kvm_irq_routing_s390_adapter) {
+ .ind_addr = 0,
+ },
+ };
+ int rc;
+
+ routing->entries[0] = ue;
+ routing->nr = 1;
+ rc = ioctl(self->vm_fd, KVM_SET_GSI_ROUTING, routing);
+ ASSERT_EQ(-1, rc) TH_LOG("err %s (%i)", strerror(errno), errno);
+ ASSERT_EQ(EINVAL, errno) TH_LOG("err %s (%i)", strerror(errno),
errno);
+}
+
TEST_HARNESS_MAIN
