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authorGerd Hoffmann <kraxel@redhat.com>2015-06-01 10:45:40 +0200
committerMichael S. Tsirkin <mst@redhat.com>2015-06-01 14:18:55 +0200
commit019a3edbb25f1571e876f8af1ce4c55412939e5d (patch)
tree2af699ef896ecdeb322a8775641299acccdd255a /hw/9pfs
parentfdba6d967e00864edd21275a6ee1d23a383510e8 (diff)
virtio: make features 64bit wide
Make features 64bit wide everywhere. On migration a full 64bit guest_features field is sent if one of the high bits is set, in addition to the lower 32bit guest_features field which must stay for compatibility reasons. That way we send the lower 32 feature bits twice, but the code is simpler because we don't have to split and compose the 64bit features into two 32bit fields. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/9pfs')
-rw-r--r--hw/9pfs/virtio-9p-device.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/9pfs/virtio-9p-device.c b/hw/9pfs/virtio-9p-device.c
index 30492ecb02..60f9ff9a31 100644
--- a/hw/9pfs/virtio-9p-device.c
+++ b/hw/9pfs/virtio-9p-device.c
@@ -21,7 +21,7 @@
#include "virtio-9p-coth.h"
#include "hw/virtio/virtio-access.h"
-static uint32_t virtio_9p_get_features(VirtIODevice *vdev, uint32_t features)
+static uint64_t virtio_9p_get_features(VirtIODevice *vdev, uint64_t features)
{
virtio_add_feature(&features, VIRTIO_9P_MOUNT_TAG);
return features;