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__ */