cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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virtio_console.h (3171B)

      1/*
      2 * This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so
      3 * anyone can use the definitions to implement compatible drivers/servers:
      4 *
      5 *
      6 * Redistribution and use in source and binary forms, with or without
      7 * modification, are permitted provided that the following conditions
      8 * are met:
      9 * 1. Redistributions of source code must retain the above copyright
     10 *    notice, this list of conditions and the following disclaimer.
     11 * 2. Redistributions in binary form must reproduce the above copyright
     12 *    notice, this list of conditions and the following disclaimer in the
     13 *    documentation and/or other materials provided with the distribution.
     14 * 3. Neither the name of IBM nor the names of its contributors
     15 *    may be used to endorse or promote products derived from this software
     16 *    without specific prior written permission.
     17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
     18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     20 * ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
     21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     27 * SUCH DAMAGE.
     28 *
     29 * Copyright (C) Red Hat, Inc., 2009, 2010, 2011
     30 * Copyright (C) Amit Shah <amit.shah@redhat.com>, 2009, 2010, 2011
     31 */
     32#ifndef _UAPI_LINUX_VIRTIO_CONSOLE_H
     33#define _UAPI_LINUX_VIRTIO_CONSOLE_H
     34#include <linux/types.h>
     35#include <linux/virtio_types.h>
     36#include <linux/virtio_ids.h>
     37#include <linux/virtio_config.h>
     38
     39/* Feature bits */
     40#define VIRTIO_CONSOLE_F_SIZE	0	/* Does host provide console size? */
     41#define VIRTIO_CONSOLE_F_MULTIPORT 1	/* Does host provide multiple ports? */
     42#define VIRTIO_CONSOLE_F_EMERG_WRITE 2 /* Does host support emergency write? */
     43
     44#define VIRTIO_CONSOLE_BAD_ID		(~(__u32)0)
     45
     46struct virtio_console_config {
     47	/* colums of the screens */
     48	__virtio16 cols;
     49	/* rows of the screens */
     50	__virtio16 rows;
     51	/* max. number of ports this device can hold */
     52	__virtio32 max_nr_ports;
     53	/* emergency write register */
     54	__virtio32 emerg_wr;
     55} __attribute__((packed));
     56
     57/*
     58 * A message that's passed between the Host and the Guest for a
     59 * particular port.
     60 */
     61struct virtio_console_control {
     62	__virtio32 id;		/* Port number */
     63	__virtio16 event;	/* The kind of control event (see below) */
     64	__virtio16 value;	/* Extra information for the key */
     65};
     66
     67/* Some events for control messages */
     68#define VIRTIO_CONSOLE_DEVICE_READY	0
     69#define VIRTIO_CONSOLE_PORT_ADD		1
     70#define VIRTIO_CONSOLE_PORT_REMOVE	2
     71#define VIRTIO_CONSOLE_PORT_READY	3
     72#define VIRTIO_CONSOLE_CONSOLE_PORT	4
     73#define VIRTIO_CONSOLE_RESIZE		5
     74#define VIRTIO_CONSOLE_PORT_OPEN	6
     75#define VIRTIO_CONSOLE_PORT_NAME	7
     76
     77
     78#endif /* _UAPI_LINUX_VIRTIO_CONSOLE_H */