1221828Sgrehan/*- 2330449Seadler * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3330449Seadler * 4221828Sgrehan * Copyright (c) 2011 NetApp, Inc. 5221828Sgrehan * All rights reserved. 6221828Sgrehan * 7221828Sgrehan * Redistribution and use in source and binary forms, with or without 8221828Sgrehan * modification, are permitted provided that the following conditions 9221828Sgrehan * are met: 10221828Sgrehan * 1. Redistributions of source code must retain the above copyright 11221828Sgrehan * notice, this list of conditions and the following disclaimer. 12221828Sgrehan * 2. Redistributions in binary form must reproduce the above copyright 13221828Sgrehan * notice, this list of conditions and the following disclaimer in the 14221828Sgrehan * documentation and/or other materials provided with the distribution. 15221828Sgrehan * 16221828Sgrehan * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 17221828Sgrehan * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18221828Sgrehan * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19221828Sgrehan * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 20221828Sgrehan * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21221828Sgrehan * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22221828Sgrehan * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23221828Sgrehan * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24221828Sgrehan * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25221828Sgrehan * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26221828Sgrehan * SUCH DAMAGE. 27221828Sgrehan * 28221828Sgrehan * $FreeBSD: stable/11/usr.sbin/bhyve/inout.h 330449 2018-03-05 07:26:05Z eadler $ 29221828Sgrehan */ 30221828Sgrehan 31221828Sgrehan#ifndef _INOUT_H_ 32221828Sgrehan#define _INOUT_H_ 33221828Sgrehan 34221828Sgrehan#include <sys/linker_set.h> 35221828Sgrehan 36221828Sgrehanstruct vmctx; 37266573Sneelstruct vm_exit; 38221828Sgrehan 39269094Sneel/* 40269094Sneel * inout emulation handlers return 0 on success and -1 on failure. 41269094Sneel */ 42221828Sgrehantypedef int (*inout_func_t)(struct vmctx *ctx, int vcpu, int in, int port, 43221828Sgrehan int bytes, uint32_t *eax, void *arg); 44221828Sgrehan 45221828Sgrehanstruct inout_port { 46221828Sgrehan const char *name; 47221828Sgrehan int port; 48249321Sneel int size; 49221828Sgrehan int flags; 50221828Sgrehan inout_func_t handler; 51221828Sgrehan void *arg; 52221828Sgrehan}; 53221828Sgrehan#define IOPORT_F_IN 0x1 54221828Sgrehan#define IOPORT_F_OUT 0x2 55257293Sneel#define IOPORT_F_INOUT (IOPORT_F_IN | IOPORT_F_OUT) 56221828Sgrehan 57257293Sneel/* 58257293Sneel * The following flags are used internally and must not be used by 59257293Sneel * device models. 60257293Sneel */ 61257293Sneel#define IOPORT_F_DEFAULT 0x80000000 /* claimed by default handler */ 62257293Sneel 63221828Sgrehan#define INOUT_PORT(name, port, flags, handler) \ 64221828Sgrehan static struct inout_port __CONCAT(__inout_port, __LINE__) = { \ 65221828Sgrehan #name, \ 66221828Sgrehan (port), \ 67249321Sneel 1, \ 68221828Sgrehan (flags), \ 69221942Sjhb (handler), \ 70221942Sjhb 0 \ 71221828Sgrehan }; \ 72221828Sgrehan DATA_SET(inout_port_set, __CONCAT(__inout_port, __LINE__)) 73221828Sgrehan 74221828Sgrehanvoid init_inout(void); 75266573Sneelint emulate_inout(struct vmctx *, int vcpu, struct vm_exit *vmexit, 76266573Sneel int strict); 77221828Sgrehanint register_inout(struct inout_port *iop); 78249321Sneelint unregister_inout(struct inout_port *iop); 79242192Sneelvoid init_bvmcons(void); 80242192Sneel 81221828Sgrehan#endif /* _INOUT_H_ */ 82