tests/libqos: Make virtio-pci code independent from global_qtest

The libqos library functions should never depend on global_qtest,
since these functions might be used in tests that track multiple
test states. So let's use the test state of the QPCIDevice instead.
Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Message-Id: <20190813093047.27948-3-thuth@redhat.com>
Signed-off-by: NThomas Huth <thuth@redhat.com>

tests/libqos/virtio-pci.c

@@ -138,9 +138,9 @@ static bool qvirtio_pci_get_queue_isr_status(QVirtioDevice *d, QVirtQueue *vq)
             /* No ISR checking should be done if masked, but read anyway */
             return qpci_msix_pending(dev->pdev, vqpci->msix_entry);
         } else {
-            data = readl(vqpci->msix_addr);
+            data = qtest_readl(dev->pdev->bus->qts, vqpci->msix_addr);
             if (data == vqpci->msix_data) {
-                writel(vqpci->msix_addr, 0);
+                qtest_writel(dev->pdev->bus->qts, vqpci->msix_addr, 0);
                 return true;
             } else {
                 return false;
@@ -162,9 +162,9 @@ static bool qvirtio_pci_get_config_isr_status(QVirtioDevice *d)
             /* No ISR checking should be done if masked, but read anyway */
             return qpci_msix_pending(dev->pdev, dev->config_msix_entry);
         } else {
-            data = readl(dev->config_msix_addr);
+            data = qtest_readl(dev->pdev->bus->qts, dev->config_msix_addr);
             if (data == dev->config_msix_data) {
-                writel(dev->config_msix_addr, 0);
+                qtest_writel(dev->pdev->bus->qts, dev->config_msix_addr, 0);
                 return true;
             } else {
                 return false;