virtio: add virtio 1.0 feature bit

Based on original patches by Rusty Russell, Thomas Huth and Cornelia Huck. Note: at this time, we do not negotiate this feature bit in core, drivers have to declare VERSION_1 support explicitly. For this reason we treat this bit as a device bit and not as a transport bit for now. After all drivers are converted, we will be able to move VERSION_1 to core and drop it from all drivers. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>

virtio: add virtio 1.0 feature bit
Based on original patches by Rusty Russell, Thomas Huth and Cornelia Huck. Note: at this time, we do not negotiate this feature bit in core, drivers have to declare VERSION_1 support explicitly. For this reason we treat this bit as a device bit and not as a transport bit for now. After all drivers are converted, we will be able to move VERSION_1 to core and drop it from all drivers. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Michael S. Tsirkin
1 parent 732c56e984
Showing 1 changed file with 3 additions and 0 deletions Side-by-side Diff
include/uapi/linux/virtio_config.h
@@ -54,5 +54,8 @@
 /* Can the device handle any descriptor layout? */
 #define VIRTIO_F_ANY_LAYOUT		27
  
+/* v1.0 compliant. */
+#define VIRTIO_F_VERSION_1		32
+
 #endif /* _UAPI_LINUX_VIRTIO_CONFIG_H */
...	...	@@ -54,5 +54,8 @@
54	54	/* Can the device handle any descriptor layout? */
55	55	#define VIRTIO_F_ANY_LAYOUT 27
56	56
	57	+/* v1.0 compliant. */
	58	+#define VIRTIO_F_VERSION_1 32
	59	+
57	60	#endif /* _UAPI_LINUX_VIRTIO_CONFIG_H */