[PULL 19/25] libqos: pass full QVirtQueue to set_queue_address()

["Michael S. Tsirkin" <mst@redhat.com>]

From: Stefan Hajnoczi <stefanha@redhat.com>

Instead of just passing the vring page frame number, pass the full
QVirtQueue.  This will allow the VIRTIO 1.0 transport to program the
fine-grained vring address registers in the future.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191023100425.12168-12-stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 tests/libqos/virtio-mmio.c | 6 ++++--
 tests/libqos/virtio-pci.c  | 6 ++++--
 tests/libqos/virtio.h      | 2 +-
 3 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/tests/libqos/virtio-mmio.c b/tests/libqos/virtio-mmio.c
index 4db1f1b8bc..e0a2bd7bc6 100644
--- a/tests/libqos/virtio-mmio.c
+++ b/tests/libqos/virtio-mmio.c
@@ -143,9 +143,11 @@ static uint16_t qvirtio_mmio_get_queue_size(QVirtioDevice *d)
     return (uint16_t)qtest_readl(dev->qts, dev->addr + QVIRTIO_MMIO_QUEUE_NUM_MAX);
 }
 
-static void qvirtio_mmio_set_queue_address(QVirtioDevice *d, uint32_t pfn)
+static void qvirtio_mmio_set_queue_address(QVirtioDevice *d, QVirtQueue *vq)
 {
     QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
+    uint64_t pfn = vq->desc / dev->page_size;
+
     qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_QUEUE_PFN, pfn);
 }
 
@@ -179,7 +181,7 @@ static QVirtQueue *qvirtio_mmio_virtqueue_setup(QVirtioDevice *d,
 
     addr = guest_alloc(alloc, qvring_size(vq->size, dev->page_size));
     qvring_init(dev->qts, alloc, vq, addr);
-    qvirtio_mmio_set_queue_address(d, vq->desc / dev->page_size);
+    qvirtio_mmio_set_queue_address(d, vq);
 
     return vq;
 }
diff --git a/tests/libqos/virtio-pci.c b/tests/libqos/virtio-pci.c
index 7ecf5d0a52..e4fa318dcc 100644
--- a/tests/libqos/virtio-pci.c
+++ b/tests/libqos/virtio-pci.c
@@ -199,9 +199,11 @@ static uint16_t qvirtio_pci_get_queue_size(QVirtioDevice *d)
     return qpci_io_readw(dev->pdev, dev->bar, VIRTIO_PCI_QUEUE_NUM);
 }
 
-static void qvirtio_pci_set_queue_address(QVirtioDevice *d, uint32_t pfn)
+static void qvirtio_pci_set_queue_address(QVirtioDevice *d, QVirtQueue *vq)
 {
     QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
+    uint64_t pfn = vq->desc / VIRTIO_PCI_VRING_ALIGN;
+
     qpci_io_writel(dev->pdev, dev->bar, VIRTIO_PCI_QUEUE_PFN, pfn);
 }
 
@@ -239,7 +241,7 @@ static QVirtQueue *qvirtio_pci_virtqueue_setup(QVirtioDevice *d,
     addr = guest_alloc(alloc, qvring_size(vqpci->vq.size,
                                           VIRTIO_PCI_VRING_ALIGN));
     qvring_init(qvpcidev->pdev->bus->qts, alloc, &vqpci->vq, addr);
-    qvirtio_pci_set_queue_address(d, vqpci->vq.desc / VIRTIO_PCI_VRING_ALIGN);
+    qvirtio_pci_set_queue_address(d, &vqpci->vq);
 
     return &vqpci->vq;
 }
diff --git a/tests/libqos/virtio.h b/tests/libqos/virtio.h
index ebbff5193b..529ef7555a 100644
--- a/tests/libqos/virtio.h
+++ b/tests/libqos/virtio.h
@@ -81,7 +81,7 @@ struct QVirtioBus {
     uint16_t (*get_queue_size)(QVirtioDevice *d);
 
     /* Set the address of the selected queue */
-    void (*set_queue_address)(QVirtioDevice *d, uint32_t pfn);
+    void (*set_queue_address)(QVirtioDevice *d, QVirtQueue *vq);
 
     /* Setup the virtqueue specified by index */
     QVirtQueue *(*virtqueue_setup)(QVirtioDevice *d, QGuestAllocator *alloc,
-- 
MST