[Qemu-devel] [6534] qemu:virtio-net: Allow setting the MAC address via set_config ( Alex Williamson)

[Anthony Liguori]

Revision: 6534
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6534
Author:   aliguori
Date:     2009-02-05 22:36:08 +0000 (Thu, 05 Feb 2009)

Log Message:
-----------
qemu:virtio-net: Allow setting the MAC address via set_config (Alex Williamson)

Allow the guest to write to the MAC address config space and update
the network info string when it does.  Rename get_config for symmetry.

Signed-off-by: Alex Williamson <address@hidden>
Signed-off-by: Anthony Liguori <address@hidden>

Modified Paths:
--------------
    trunk/hw/virtio-net.c

Modified: trunk/hw/virtio-net.c
===================================================================
--- trunk/hw/virtio-net.c       2009-02-05 22:36:04 UTC (rev 6533)
+++ trunk/hw/virtio-net.c       2009-02-05 22:36:08 UTC (rev 6534)
@@ -40,7 +40,7 @@
     return (VirtIONet *)vdev;
 }
 
-static void virtio_net_update_config(VirtIODevice *vdev, uint8_t *config)
+static void virtio_net_get_config(VirtIODevice *vdev, uint8_t *config)
 {
     VirtIONet *n = to_virtio_net(vdev);
     struct virtio_net_config netcfg;
@@ -50,6 +50,19 @@
     memcpy(config, &netcfg, sizeof(netcfg));
 }
 
+static void virtio_net_set_config(VirtIODevice *vdev, const uint8_t *config)
+{
+    VirtIONet *n = to_virtio_net(vdev);
+    struct virtio_net_config netcfg;
+
+    memcpy(&netcfg, config, sizeof(netcfg));
+
+    if (memcmp(netcfg.mac, n->mac, 6)) {
+        memcpy(n->mac, netcfg.mac, 6);
+        qemu_format_nic_info_str(n->vc, n->mac);
+    }
+}
+
 static void virtio_net_set_link_status(VLANClientState *vc)
 {
     VirtIONet *n = vc->opaque;
@@ -337,7 +350,8 @@
     if (!n)
         return;
 
-    n->vdev.get_config = virtio_net_update_config;
+    n->vdev.get_config = virtio_net_get_config;
+    n->vdev.set_config = virtio_net_set_config;
     n->vdev.get_features = virtio_net_get_features;
     n->vdev.set_features = virtio_net_set_features;
     n->rx_vq = virtio_add_queue(&n->vdev, 256, virtio_net_handle_rx);