[PATCH v2 3/6] tests/qtest/libqos: Skip hotplug tests if pci root bus is not hotpluggable

[Eric Auger <eric.auger@redhat.com>]

ARM does not not support hotplug on pcie.0. Add a flag on the bus
which tells if devices can be hotplugged and skip hotplug tests
if the bus cannot be hotplugged. This is a temporary solution to
enable the other pci tests on aarch64.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>

---

v1 ->v2:
- reword g_test_skip msg into "pci bus does not support hotplug"
---
 tests/qtest/e1000e-test.c         |  6 ++++++
 tests/qtest/libqos/pci.h          |  1 +
 tests/qtest/vhost-user-blk-test.c | 10 ++++++++++
 tests/qtest/virtio-blk-test.c     |  5 +++++
 tests/qtest/virtio-net-test.c     |  5 +++++
 tests/qtest/virtio-rng-test.c     |  5 +++++
 6 files changed, 32 insertions(+)

diff --git a/tests/qtest/e1000e-test.c b/tests/qtest/e1000e-test.c
index 0273fe4c15..48f3dbb0fd 100644
--- a/tests/qtest/e1000e-test.c
+++ b/tests/qtest/e1000e-test.c
@@ -235,6 +235,12 @@ static void test_e1000e_multiple_transfers(void *obj, void *data,
 static void test_e1000e_hotplug(void *obj, void *data, QGuestAllocator * alloc)
 {
     QTestState *qts = global_qtest;  /* TODO: get rid of global_qtest here */
+    QE1000E_PCI *dev = obj;
+
+    if (dev->pci_dev.bus->not_hotpluggable) {
+        g_test_skip("pci bus does not support hotplug");
+        return;
+    }
 
     qtest_qmp_device_add(qts, "e1000e", "e1000e_net", "{'addr': '0x06'}");
     qpci_unplug_acpi_device_test(qts, "e1000e_net", 0x06);
diff --git a/tests/qtest/libqos/pci.h b/tests/qtest/libqos/pci.h
index 44f6806fe4..6a28b40522 100644
--- a/tests/qtest/libqos/pci.h
+++ b/tests/qtest/libqos/pci.h
@@ -52,6 +52,7 @@ struct QPCIBus {
     uint64_t pio_alloc_ptr, pio_limit;
     uint64_t mmio_alloc_ptr, mmio_limit;
     bool has_buggy_msi; /* TRUE for spapr, FALSE for pci */
+    bool not_hotpluggable; /* TRUE if devices cannot be hotplugged */
 
 };
 
diff --git a/tests/qtest/vhost-user-blk-test.c b/tests/qtest/vhost-user-blk-test.c
index 62e670f39b..1316aae0fa 100644
--- a/tests/qtest/vhost-user-blk-test.c
+++ b/tests/qtest/vhost-user-blk-test.c
@@ -676,6 +676,11 @@ static void pci_hotplug(void *obj, void *data, QGuestAllocator *t_alloc)
     QVirtioPCIDevice *dev;
     QTestState *qts = dev1->pdev->bus->qts;
 
+    if (dev1->pdev->bus->not_hotpluggable) {
+        g_test_skip("pci bus does not support hotplug");
+        return;
+    }
+
     /* plug secondary disk */
     qtest_qmp_device_add(qts, "vhost-user-blk-pci", "drv1",
                          "{'addr': %s, 'chardev': 'char2'}",
@@ -703,6 +708,11 @@ static void multiqueue(void *obj, void *data, QGuestAllocator *t_alloc)
     uint64_t features;
     uint16_t num_queues;
 
+    if (pdev1->pdev->bus->not_hotpluggable) {
+        g_test_skip("bus pci.0 does not support hotplug");
+        return;
+    }
+
     /*
      * The primary device has 1 queue and VIRTIO_BLK_F_MQ is not enabled. The
      * VIRTIO specification allows VIRTIO_BLK_F_MQ to be enabled when there is
diff --git a/tests/qtest/virtio-blk-test.c b/tests/qtest/virtio-blk-test.c
index 2a23698211..acb44c9fb8 100644
--- a/tests/qtest/virtio-blk-test.c
+++ b/tests/qtest/virtio-blk-test.c
@@ -701,6 +701,11 @@ static void pci_hotplug(void *obj, void *data, QGuestAllocator *t_alloc)
     QVirtioPCIDevice *dev;
     QTestState *qts = dev1->pdev->bus->qts;
 
+    if (dev1->pdev->bus->not_hotpluggable) {
+        g_test_skip("pci bus does not support hotplug");
+        return;
+    }
+
     /* plug secondary disk */
     qtest_qmp_device_add(qts, "virtio-blk-pci", "drv1",
                          "{'addr': %s, 'drive': 'drive1'}",
diff --git a/tests/qtest/virtio-net-test.c b/tests/qtest/virtio-net-test.c
index 8bf74e516c..af3027144f 100644
--- a/tests/qtest/virtio-net-test.c
+++ b/tests/qtest/virtio-net-test.c
@@ -174,6 +174,11 @@ static void hotplug(void *obj, void *data, QGuestAllocator *t_alloc)
     QTestState *qts = dev->pdev->bus->qts;
     const char *arch = qtest_get_arch();
 
+    if (dev->pdev->bus->not_hotpluggable) {
+        g_test_skip("pci bus does not support hotplug");
+        return;
+    }
+
     qtest_qmp_device_add(qts, "virtio-net-pci", "net1",
                          "{'addr': %s}", stringify(PCI_SLOT_HP));
 
diff --git a/tests/qtest/virtio-rng-test.c b/tests/qtest/virtio-rng-test.c
index e6b8cd8e0c..5ce444ad72 100644
--- a/tests/qtest/virtio-rng-test.c
+++ b/tests/qtest/virtio-rng-test.c
@@ -20,6 +20,11 @@ static void rng_hotplug(void *obj, void *data, QGuestAllocator *alloc)
     QVirtioPCIDevice *dev = obj;
     QTestState *qts = dev->pdev->bus->qts;
 
+   if (dev->pdev->bus->not_hotpluggable) {
+        g_test_skip("pci bus does not support hotplug");
+        return;
+    }
+
     const char *arch = qtest_get_arch();
 
     qtest_qmp_device_add(qts, "virtio-rng-pci", "rng1",
-- 
2.26.3