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authorMichael S. Tsirkin <mst@redhat.com>2014-12-12 01:10:49 +0200
committerMichael S. Tsirkin <mst@redhat.com>2014-12-15 23:49:28 +0200
commitb9f7ac8c72894c19bf258a54ecaa708df4ffbe80 (patch)
tree74d25a95bf300aed5f58c6a08a8faf561db13179 /include/linux/vringh.h
parentb97a8a90067896f99f0d636dbc2b89a953123fad (diff)
vringh: update for virtio 1.0 APIs
When switching everything over to virtio 1.0 memory access APIs, I missed converting vringh. Fortunately, it's straight-forward. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/linux/vringh.h')
-rw-r--r--include/linux/vringh.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/include/linux/vringh.h b/include/linux/vringh.h
index f696dd0b6472..a3fa537e717a 100644
--- a/include/linux/vringh.h
+++ b/include/linux/vringh.h
@@ -24,12 +24,16 @@
#ifndef _LINUX_VRINGH_H
#define _LINUX_VRINGH_H
#include <uapi/linux/virtio_ring.h>
+#include <linux/virtio_byteorder.h>
#include <linux/uio.h>
#include <linux/slab.h>
#include <asm/barrier.h>
/* virtio_ring with information needed for host access. */
struct vringh {
+ /* Everything is little endian */
+ bool little_endian;
+
/* Guest publishes used event idx (note: we always do). */
bool event_indices;
@@ -222,4 +226,33 @@ static inline void vringh_notify(struct vringh *vrh)
vrh->notify(vrh);
}
+static inline u16 vringh16_to_cpu(const struct vringh *vrh, __virtio16 val)
+{
+ return __virtio16_to_cpu(vrh->little_endian, val);
+}
+
+static inline __virtio16 cpu_to_vringh16(const struct vringh *vrh, u16 val)
+{
+ return __cpu_to_virtio16(vrh->little_endian, val);
+}
+
+static inline u32 vringh32_to_cpu(const struct vringh *vrh, __virtio32 val)
+{
+ return __virtio32_to_cpu(vrh->little_endian, val);
+}
+
+static inline __virtio32 cpu_to_vringh32(const struct vringh *vrh, u32 val)
+{
+ return __cpu_to_virtio32(vrh->little_endian, val);
+}
+
+static inline u64 vringh64_to_cpu(const struct vringh *vrh, __virtio64 val)
+{
+ return __virtio64_to_cpu(vrh->little_endian, val);
+}
+
+static inline __virtio64 cpu_to_vringh64(const struct vringh *vrh, u64 val)
+{
+ return __cpu_to_virtio64(vrh->little_endian, val);
+}
#endif /* _LINUX_VRINGH_H */