1 /* SPDX-License-Identifier: GPL-2.0 */
2 /******************************************************************************
3  * console.h
4  *
5  * Console I/O interface for Xen guest OSes.
6  *
7  * Copyright (c) 2005, Keir Fraser
8  */
9 
10 #ifndef __XEN_PUBLIC_IO_CONSOLE_H__
11 #define __XEN_PUBLIC_IO_CONSOLE_H__
12 
13 typedef uint32_t XENCONS_RING_IDX;
14 
15 #define MASK_XENCONS_IDX(idx, ring) ((idx) & (sizeof(ring)-1))
16 
17 struct xencons_interface {
18     char in[1024];
19     char out[2048];
20     XENCONS_RING_IDX in_cons, in_prod;
21     XENCONS_RING_IDX out_cons, out_prod;
22 };
23 
24 #endif /* __XEN_PUBLIC_IO_CONSOLE_H__ */
25