/* SPDX-License-Identifier: MIT */ /****************************************************************************** * console.h * * Console I/O interface for Xen guest OSes. * * Copyright (c) 2005, Keir Fraser */ #ifndef __XEN_PUBLIC_IO_CONSOLE_H__ #define __XEN_PUBLIC_IO_CONSOLE_H__ typedef uint32_t XENCONS_RING_IDX; #define MASK_XENCONS_IDX(idx, ring) ((idx) & (sizeof(ring)-1)) struct xencons_interface { char in[1024]; char out[2048]; XENCONS_RING_IDX in_cons, in_prod; XENCONS_RING_IDX out_cons, out_prod; /* * Flag values signaling from backend to frontend whether the console is * connected. i.e. Whether it will be serviced and emptied. * * The flag starts as disconnected. */ #define XENCONSOLE_DISCONNECTED 1 /* * The flag is set to connected when the backend connects and the console * will be serviced. */ #define XENCONSOLE_CONNECTED 0 uint8_t connection; }; #endif /* __XEN_PUBLIC_IO_CONSOLE_H__ */