Line data    Source code

       1            0 : /* SPDX-License-Identifier: MIT */
       2              : 
       3              : /******************************************************************************
       4              :  * console.h
       5              :  *
       6              :  * Console I/O interface for Xen guest OSes.
       7              :  *
       8              :  * Permission is hereby granted, free of charge, to any person obtaining a copy
       9              :  * of this software and associated documentation files (the "Software"), to
      10              :  * deal in the Software without restriction, including without limitation the
      11              :  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
      12              :  * sell copies of the Software, and to permit persons to whom the Software is
      13              :  * furnished to do so, subject to the following conditions:
      14              :  *
      15              :  * The above copyright notice and this permission notice shall be included in
      16              :  * all copies or substantial portions of the Software.
      17              :  *
      18              :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      19              :  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      20              :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
      21              :  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      22              :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      23              :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
      24              :  * DEALINGS IN THE SOFTWARE.
      25              :  *
      26              :  * Copyright (c) 2005, Keir Fraser
      27              :  */
      28              : 
      29              : #ifndef __XEN_PUBLIC_IO_CONSOLE_H__
      30              : #define __XEN_PUBLIC_IO_CONSOLE_H__
      31              : 
      32            0 : typedef uint32_t XENCONS_RING_IDX;
      33              : 
      34            0 : #define MASK_XENCONS_IDX(idx, ring) ((idx) & (sizeof(ring)-1))
      35              : 
      36            0 : struct xencons_interface {
      37            0 :         char in[1024];
      38            0 :         char out[2048];
      39            0 :         XENCONS_RING_IDX in_cons, in_prod;
      40            0 :         XENCONS_RING_IDX out_cons, out_prod;
      41              : };
      42              : 
      43              : #ifdef XEN_WANT_FLEX_CONSOLE_RING
      44              : #include "ring.h"
      45              : DEFINE_XEN_FLEX_RING(xencons);
      46              : #endif
      47              : 
      48              : #endif /* __XEN_PUBLIC_IO_CONSOLE_H__ */