Re: [Qemu-devel] qemu-kvm-0.11 regression, crashes on older guests with virtio network

[Dustin Kirkland]

On Thu, 2009-10-29 at 14:48 +0000, Mark McLoughlin wrote:
> Ah, it all makes sense now.
> 
> I was getting confused between HOST_* and GUEST_*
> 
> this should have been:
> 
>     features |= (1 << VIRTIO_NET_F_MAC);
>     features |= (1 << VIRTIO_NET_F_HOST_CSUM);
>     features |= (1 << VIRTIO_NET_F_HOST_TSO4);
>     features |= (1 << VIRTIO_NET_F_HOST_TSO6);
>     features |= (1 << VIRTIO_NET_F_HOST_ECN);
> 
> Could you try that Dustin?

Hmm, not sure I'm doing this correctly...  I tried changing the
following, but looks like I might also have to define these as well,
since:

/tmp/qemu-kvm/qemu-kvm/hw/virtio-net.c:167: error:
‘VIRTIO_NET_F_HOST_CSUM’ undeclared (first use in this function)


diff --git a/hw/virtio-net.c b/hw/virtio-net.c
index ce8e6cb..6582e69 100644
--- a/hw/virtio-net.c
+++ b/hw/virtio-net.c
@@ -164,10 +164,10 @@ static uint32_t virtio_net_bad_features(VirtIODevice 
*vdev)
     /* Linux kernel 2.6.25.  It understood MAC (as everyone must),
      * but also these: */
     features |= (1 << VIRTIO_NET_F_MAC);
-    features |= (1 << VIRTIO_NET_F_GUEST_CSUM);
-    features |= (1 << VIRTIO_NET_F_GUEST_TSO4);
-    features |= (1 << VIRTIO_NET_F_GUEST_TSO6);
-    features |= (1 << VIRTIO_NET_F_GUEST_ECN);
+    features |= (1 << VIRTIO_NET_F_HOST_CSUM);
+    features |= (1 << VIRTIO_NET_F_HOST_TSO4);
+    features |= (1 << VIRTIO_NET_F_HOST_TSO6);
+    features |= (1 << VIRTIO_NET_F_HOST_ECN);
 
     return features & virtio_net_get_features(vdev);
 }

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