[Qemu-devel] [PATCH v2 2/5] pci: Add interface names to hybrid PCI devices

[Eduardo Habkost]

The following devices support both PCI Express and Conventional
PCI, by including special code to handle the QEMU_PCI_CAP_EXPRESS
flag and/or conditional pcie_endpoint_cap_init() calls:

* vfio-pci (is_express=1, but legacy PCI handled by
  vfio_populate_device())
* vmxnet3 (is_express=0, but PCIe handled by vmxnet3_realize())
* pvscsi (is_express=0, but PCIe handled by pvscsi_realize())
* virtio-pci (is_express=0, but PCIe handled by
  virtio_pci_dc_realize(), and additional legacy PCI code at
  virtio_pci_realize())
* base-xhci (is_express=1, but pcie_endpoint_cap_init() call
  is conditional on pci_bus_is_express(dev->bus)
  * Note that xhci does not clear QEMU_PCI_CAP_EXPRESS like the
    other hybrid devices

Cc: Dmitry Fleytman <address@hidden>
Cc: Jason Wang <address@hidden>
Cc: Paolo Bonzini <address@hidden>
Cc: Gerd Hoffmann <address@hidden>
Cc: Alex Williamson <address@hidden>
Cc: "Michael S. Tsirkin" <address@hidden>
Signed-off-by: Eduardo Habkost <address@hidden>
---
Changes v1 -> v2:
* s/legacy/conventional/
  * Suggested-by: Alex Williamson <address@hidden>
* Mark base-xhci as hybrid too
---
 hw/net/vmxnet3.c       | 5 +++++
 hw/scsi/vmw_pvscsi.c   | 2 ++
 hw/usb/hcd-xhci.c      | 5 +++++
 hw/vfio/pci.c          | 5 +++++
 hw/virtio/virtio-pci.c | 5 +++++
 5 files changed, 22 insertions(+)

diff --git a/hw/net/vmxnet3.c b/hw/net/vmxnet3.c
index a19a7a31dd..f99d9a69ec 100644
--- a/hw/net/vmxnet3.c
+++ b/hw/net/vmxnet3.c
@@ -2651,6 +2651,11 @@ static const TypeInfo vmxnet3_info = {
     .instance_size = sizeof(VMXNET3State),
     .class_init    = vmxnet3_class_init,
     .instance_init = vmxnet3_instance_init,
+    .interfaces = (InterfaceInfo[]) {
+        { INTERFACE_PCIE_DEVICE },
+        { INTERFACE_CONVENTIONAL_PCI_DEVICE },
+        { }
+    },
 };
 
 static void vmxnet3_register_types(void)
diff --git a/hw/scsi/vmw_pvscsi.c b/hw/scsi/vmw_pvscsi.c
index 6d3f0bf11d..d6b315f8b2 100644
--- a/hw/scsi/vmw_pvscsi.c
+++ b/hw/scsi/vmw_pvscsi.c
@@ -1300,6 +1300,8 @@ static const TypeInfo pvscsi_info = {
     .class_init    = pvscsi_class_init,
     .interfaces = (InterfaceInfo[]) {
         { TYPE_HOTPLUG_HANDLER },
+        { INTERFACE_PCIE_DEVICE },
+        { INTERFACE_CONVENTIONAL_PCI_DEVICE },
         { }
     }
 };
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index d75c085d94..af3a9d88de 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -3670,6 +3670,11 @@ static const TypeInfo xhci_info = {
     .instance_size = sizeof(XHCIState),
     .class_init    = xhci_class_init,
     .abstract      = true,
+    .interfaces = (InterfaceInfo[]) {
+        { INTERFACE_PCIE_DEVICE },
+        { INTERFACE_CONVENTIONAL_PCI_DEVICE },
+        { }
+    },
 };
 
 static void qemu_xhci_class_init(ObjectClass *klass, void *data)
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 31e1edf447..913433d6ba 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -3023,6 +3023,11 @@ static const TypeInfo vfio_pci_dev_info = {
     .class_init = vfio_pci_dev_class_init,
     .instance_init = vfio_instance_init,
     .instance_finalize = vfio_instance_finalize,
+    .interfaces = (InterfaceInfo[]) {
+        { INTERFACE_PCIE_DEVICE },
+        { INTERFACE_CONVENTIONAL_PCI_DEVICE },
+        { }
+    },
 };
 
 static void register_vfio_pci_dev_type(void)
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 8b0d6b69cd..67c8ab63ad 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1958,6 +1958,11 @@ static const TypeInfo virtio_pci_info = {
     .class_init    = virtio_pci_class_init,
     .class_size    = sizeof(VirtioPCIClass),
     .abstract      = true,
+    .interfaces = (InterfaceInfo[]) {
+        { INTERFACE_PCIE_DEVICE },
+        { INTERFACE_CONVENTIONAL_PCI_DEVICE },
+        { }
+    },
 };
 
 /* virtio-blk-pci */
-- 
2.13.5