linux-headers/linux/vfio_ccw.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /*
   3  * Interfaces for vfio-ccw
   4  *
   5  * Copyright IBM Corp. 2017
   6  *
   7  * Author(s): Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
   8  */
   9
  10 #ifndef _VFIO_CCW_H_
  11 #define _VFIO_CCW_H_
  12
  13 #include <linux/types.h>
  14
  15 struct ccw_io_region {
  16 #define ORB_AREA_SIZE 12
  17         __u8    orb_area[ORB_AREA_SIZE];
  18 #define SCSW_AREA_SIZE 12
  19         __u8    scsw_area[SCSW_AREA_SIZE];
  20 #define IRB_AREA_SIZE 96
  21         __u8    irb_area[IRB_AREA_SIZE];
  22         __u32   ret_code;
  23 } __attribute__((packed));
  24
  25 #endif