release/src-rt-6.x.4708/linux/linux-2.6.36/include/xen/interface/io/console.h

   1 /******************************************************************************
   2  * console.h
   3  *
   4  * Console I/O interface for Xen guest OSes.
   5  *
   6  * Copyright (c) 2005, Keir Fraser
   7  */
   8
   9 #ifndef __XEN_PUBLIC_IO_CONSOLE_H__
  10 #define __XEN_PUBLIC_IO_CONSOLE_H__
  11
  12 typedef uint32_t XENCONS_RING_IDX;
  13
  14 #define MASK_XENCONS_IDX(idx, ring) ((idx) & (sizeof(ring)-1))
  15
  16 struct xencons_interface {
  17     char in[1024];
  18     char out[2048];
  19     XENCONS_RING_IDX in_cons, in_prod;
  20     XENCONS_RING_IDX out_cons, out_prod;
  21 };
  22
  23 #endif /* __XEN_PUBLIC_IO_CONSOLE_H__ */