diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2015-06-01 10:45:40 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-06-01 14:18:55 +0200 |
| commit | 019a3edbb25f1571e876f8af1ce4c55412939e5d (patch) | |
| tree | 2af699ef896ecdeb322a8775641299acccdd255a /hw/block/virtio-blk.c | |
| parent | fdba6d967e00864edd21275a6ee1d23a383510e8 (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/block/virtio-blk.c')
| -rw-r--r-- | hw/block/virtio-blk.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c index e6afe9763d..cd539aa11c 100644 --- a/hw/block/virtio-blk.c +++ b/hw/block/virtio-blk.c @@ -718,7 +718,7 @@ static void virtio_blk_set_config(VirtIODevice *vdev, const uint8_t *config) aio_context_release(blk_get_aio_context(s->blk)); } -static uint32_t virtio_blk_get_features(VirtIODevice *vdev, uint32_t features) +static uint64_t virtio_blk_get_features(VirtIODevice *vdev, uint64_t features) { VirtIOBlock *s = VIRTIO_BLK(vdev); |