freebsd-skq/usr.sbin/bhyve/inout.h
Pedro F. Giffuni 1de7b4b805 various: general adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

No functional change intended.
2017-11-27 15:37:16 +00:00

82 lines
2.6 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2011 NetApp, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _INOUT_H_
#define _INOUT_H_
#include <sys/linker_set.h>
struct vmctx;
struct vm_exit;
/*
* inout emulation handlers return 0 on success and -1 on failure.
*/
typedef int (*inout_func_t)(struct vmctx *ctx, int vcpu, int in, int port,
int bytes, uint32_t *eax, void *arg);
struct inout_port {
const char *name;
int port;
int size;
int flags;
inout_func_t handler;
void *arg;
};
#define IOPORT_F_IN 0x1
#define IOPORT_F_OUT 0x2
#define IOPORT_F_INOUT (IOPORT_F_IN | IOPORT_F_OUT)
/*
* The following flags are used internally and must not be used by
* device models.
*/
#define IOPORT_F_DEFAULT 0x80000000 /* claimed by default handler */
#define INOUT_PORT(name, port, flags, handler) \
static struct inout_port __CONCAT(__inout_port, __LINE__) = { \
#name, \
(port), \
1, \
(flags), \
(handler), \
0 \
}; \
DATA_SET(inout_port_set, __CONCAT(__inout_port, __LINE__))
void init_inout(void);
int emulate_inout(struct vmctx *, int vcpu, struct vm_exit *vmexit,
int strict);
int register_inout(struct inout_port *iop);
int unregister_inout(struct inout_port *iop);
void init_bvmcons(void);
#endif /* _INOUT_H_ */