diff mbox series

[GIT,PULL,v1,5/6] KVM: s390: selftests: Add ucontrol gis routing test

Message ID 20250108152350.48892-6-imbrenda@linux.ibm.com (mailing list archive)
State New
Headers show
Series [GIT,PULL,v1,1/6] KVM: s390: vsie: fix virtual/physical address in unpin_scb() | expand

Commit Message

Claudio Imbrenda Jan. 8, 2025, 3:23 p.m. UTC 
From: Christoph Schlameuss <schlameuss@linux.ibm.com>

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@linux.ibm.com>
Tested-by: Hariharan Mari <hari55@linux.ibm.com>
Reviewed-by: Hariharan Mari <hari55@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20241216092140.329196-5-schlameuss@linux.ibm.com
Message-ID: <20241216092140.329196-5-schlameuss@linux.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
---
 .../selftests/kvm/s390x/ucontrol_test.c       | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
diff mbox series

Patch

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