1 /* 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 typedef uint32_t XENCONS_RING_IDX; 33 34 #define MASK_XENCONS_IDX(idx, ring) ((idx) & (sizeof(ring)-1)) 35 36 struct xencons_interface { 37 char in[1024]; 38 char out[2048]; 39 XENCONS_RING_IDX in_cons, in_prod; 40 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__ */ 49
