commit 6b8f1020540c27246277377aa2c3331ad2bfb160
author Cornelia Huck <cornelia.huck@de.ibm.com> Tue May 26 16:34:47 2015 +0200
committer Michael S. Tsirkin <mst@redhat.com> Sun May 31 16:27:18 2015 +0200
tree 882fcff4a803fffaef50573fe343646e1e1f3f30
parent 2332333c9738b442fbbd5b83a1eaa6be656ab9b5

virtio: move host_features

Move host_features from the individual transport proxies into
the virtio device. Transports may continue to add feature bits
during device plugging.

This should it make easier to offer different sets of host features
for virtio-1/transitional support.

Tested-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

hw/virtio/virtio-pci.c

diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index c931790..8ea7231 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -306,7 +306,7 @@
 
     switch (addr) {
     case VIRTIO_PCI_HOST_FEATURES:
-        ret = proxy->host_features;
+        ret = vdev->host_features;
         break;
     case VIRTIO_PCI_GUEST_FEATURES:
         ret = vdev->guest_features;
@@ -434,12 +434,6 @@
     }
 }
 
-static unsigned virtio_pci_get_features(DeviceState *d)
-{
-    VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
-    return proxy->host_features;
-}
-
 static int kvm_virtio_pci_vq_vector_use(VirtIOPCIProxy *proxy,
                                         unsigned int queue_no,
                                         unsigned int vector,
@@ -924,6 +918,7 @@
     VirtioBusState *bus = &proxy->bus;
     uint8_t *config;
     uint32_t size;
+    VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
 
     config = proxy->pci_dev.config;
     if (proxy->class_code) {
@@ -958,10 +953,8 @@
         proxy->flags &= ~VIRTIO_PCI_FLAG_USE_IOEVENTFD;
     }
 
-    virtio_add_feature(&proxy->host_features, VIRTIO_F_NOTIFY_ON_EMPTY);
-    virtio_add_feature(&proxy->host_features, VIRTIO_F_BAD_FEATURE);
-    proxy->host_features = virtio_bus_get_vdev_features(bus,
-                                                      proxy->host_features);
+    virtio_add_feature(&vdev->host_features, VIRTIO_F_NOTIFY_ON_EMPTY);
+    virtio_add_feature(&vdev->host_features, VIRTIO_F_BAD_FEATURE);
 }
 
 static void virtio_pci_device_unplugged(DeviceState *d)
@@ -999,7 +992,6 @@
 static Property virtio_pci_properties[] = {
     DEFINE_PROP_BIT("virtio-pci-bus-master-bug-migration", VirtIOPCIProxy, flags,
                     VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT, false),
-    DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features),
     DEFINE_PROP_END_OF_LIST(),
 };
 
@@ -1469,7 +1461,6 @@
     k->load_config = virtio_pci_load_config;
     k->save_queue = virtio_pci_save_queue;
     k->load_queue = virtio_pci_load_queue;
-    k->get_features = virtio_pci_get_features;
     k->query_guest_notifiers = virtio_pci_query_guest_notifiers;
     k->set_host_notifier = virtio_pci_set_host_notifier;
     k->set_guest_notifiers = virtio_pci_set_guest_notifiers;