KVM: s390: Export virtio-ccw api.

Export the virtio-ccw api in a header for usage by other code.

Signed-off-by: Cornelia Huck <[e-mail]>
Signed-off-by: Marcelo Tosatti <[e-mail]>

arch/s390/include/uapi/asm/Kbuild

···
 header-y += types.h
 header-y += ucontext.h
 header-y += unistd.h
+header-y += virtio-ccw.h
 header-y += vtoc.h
 header-y += zcrypt.h

arch/s390/include/uapi/asm/virtio-ccw.h

···
+/*
+ * Definitions for virtio-ccw devices.
+ *
+ * Copyright IBM Corp. 2013
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ *
+ *  Author(s): Cornelia Huck <[e-mail]>
+ */
+#ifndef __KVM_VIRTIO_CCW_H
+#define __KVM_VIRTIO_CCW_H
+
+/* Alignment of vring buffers. */
+#define KVM_VIRTIO_CCW_RING_ALIGN 4096
+
+/* Subcode for diagnose 500 (virtio hypercall). */
+#define KVM_S390_VIRTIO_CCW_NOTIFY 3
+
+#endif

drivers/s390/kvm/virtio_ccw.c

···
 #include <asm/irq.h>
 #include <asm/cio.h>
 #include <asm/ccwdev.h>
+#include <asm/virtio-ccw.h>
 
 /*
  * virtio related functions
···
 	struct list_head node;
 	long cookie;
 };
-
-#define KVM_VIRTIO_CCW_RING_ALIGN 4096
-
-#define KVM_S390_VIRTIO_CCW_NOTIFY 3
 
 #define CCW_CMD_SET_VQ 0x13
 #define CCW_CMD_VDEV_RESET 0x33