| Message ID | 1417118789-18231-30-git-send-email-mst@redhat.com |
|---|---|
| State | Not Applicable, archived |
| Delegated to: | David Miller |
| Headers | show |
On Fri, Nov 28, 2014 at 4:10 AM, Michael S. Tsirkin <mst@redhat.com> wrote: > Add guest memory access wrappers to handle virtio endianness > conversions. > > Signed-off-by: Michael S. Tsirkin <mst@redhat.com> > --- > drivers/vhost/vhost.h | 31 +++++++++++++++++++++++++++++++ > 1 file changed, 31 insertions(+) > > diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h > index c624b09..1f321fd 100644 > --- a/drivers/vhost/vhost.h > +++ b/drivers/vhost/vhost.h > @@ -176,4 +176,35 @@ static inline int vhost_has_feature(struct > vhost_virtqueue *vq, int bit) > { > return vq->acked_features & (1ULL << bit); > } > + > +/* Memory accessors */ > +static inline u16 vhost16_to_cpu(struct vhost_virtqueue *vq, > __virtio16 val) > +{ > + return __virtio16_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), > val); > +} > + > +static inline __virtio16 cpu_to_vhost16(struct vhost_virtqueue *vq, > u16 val) > +{ > + return __cpu_to_virtio16(vhost_has_feature(vq, VIRTIO_F_VERSION_1), > val); > +} > + > +static inline u32 vhost32_to_cpu(struct vhost_virtqueue *vq, > __virtio32 val) > +{ > + return __virtio32_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), > val); > +} > + > +static inline __virtio32 cpu_to_vhost32(struct vhost_virtqueue *vq, > u32 val) > +{ > + return __cpu_to_virtio32(vhost_has_feature(vq, VIRTIO_F_VERSION_1), > val); > +} > + > +static inline u64 vhost64_to_cpu(struct vhost_virtqueue *vq, > __virtio64 val) > +{ > + return __virtio64_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), > val); > +} > + > +static inline __virtio64 cpu_to_vhost64(struct vhost_virtqueue *vq, > u64 val) > +{ > + return __cpu_to_virtio64(vhost_has_feature(vq, VIRTIO_F_VERSION_1), > val); > +} > #endif > -- > MST Reviewed-by: Jason Wang <jasowang@redhat.com> -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index c624b09..1f321fd 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -176,4 +176,35 @@ static inline int vhost_has_feature(struct vhost_virtqueue *vq, int bit) { return vq->acked_features & (1ULL << bit); } + +/* Memory accessors */ +static inline u16 vhost16_to_cpu(struct vhost_virtqueue *vq, __virtio16 val) +{ + return __virtio16_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); +} + +static inline __virtio16 cpu_to_vhost16(struct vhost_virtqueue *vq, u16 val) +{ + return __cpu_to_virtio16(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); +} + +static inline u32 vhost32_to_cpu(struct vhost_virtqueue *vq, __virtio32 val) +{ + return __virtio32_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); +} + +static inline __virtio32 cpu_to_vhost32(struct vhost_virtqueue *vq, u32 val) +{ + return __cpu_to_virtio32(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); +} + +static inline u64 vhost64_to_cpu(struct vhost_virtqueue *vq, __virtio64 val) +{ + return __virtio64_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); +} + +static inline __virtio64 cpu_to_vhost64(struct vhost_virtqueue *vq, u64 val) +{ + return __cpu_to_virtio64(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); +} #endif
Add guest memory access wrappers to handle virtio endianness conversions. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> --- drivers/vhost/vhost.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+)