1*5c4a5fe1SAndy Fiddaman /*- 2*5c4a5fe1SAndy Fiddaman * SPDX-License-Identifier: BSD-2-Clause 3*5c4a5fe1SAndy Fiddaman * 4*5c4a5fe1SAndy Fiddaman * Copyright (c) 2011 NetApp, Inc. 5*5c4a5fe1SAndy Fiddaman * All rights reserved. 6*5c4a5fe1SAndy Fiddaman * 7*5c4a5fe1SAndy Fiddaman * Redistribution and use in source and binary forms, with or without 8*5c4a5fe1SAndy Fiddaman * modification, are permitted provided that the following conditions 9*5c4a5fe1SAndy Fiddaman * are met: 10*5c4a5fe1SAndy Fiddaman * 1. Redistributions of source code must retain the above copyright 11*5c4a5fe1SAndy Fiddaman * notice, this list of conditions and the following disclaimer. 12*5c4a5fe1SAndy Fiddaman * 2. Redistributions in binary form must reproduce the above copyright 13*5c4a5fe1SAndy Fiddaman * notice, this list of conditions and the following disclaimer in the 14*5c4a5fe1SAndy Fiddaman * documentation and/or other materials provided with the distribution. 15*5c4a5fe1SAndy Fiddaman * 16*5c4a5fe1SAndy Fiddaman * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 17*5c4a5fe1SAndy Fiddaman * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18*5c4a5fe1SAndy Fiddaman * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19*5c4a5fe1SAndy Fiddaman * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 20*5c4a5fe1SAndy Fiddaman * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21*5c4a5fe1SAndy Fiddaman * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22*5c4a5fe1SAndy Fiddaman * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23*5c4a5fe1SAndy Fiddaman * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24*5c4a5fe1SAndy Fiddaman * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25*5c4a5fe1SAndy Fiddaman * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26*5c4a5fe1SAndy Fiddaman * SUCH DAMAGE. 27*5c4a5fe1SAndy Fiddaman */ 28*5c4a5fe1SAndy Fiddaman /* 29*5c4a5fe1SAndy Fiddaman * This file and its contents are supplied under the terms of the 30*5c4a5fe1SAndy Fiddaman * Common Development and Distribution License ("CDDL"), version 1.0. 31*5c4a5fe1SAndy Fiddaman * You may only use this file in accordance with the terms of version 32*5c4a5fe1SAndy Fiddaman * 1.0 of the CDDL. 33*5c4a5fe1SAndy Fiddaman * 34*5c4a5fe1SAndy Fiddaman * A full copy of the text of the CDDL should have accompanied this 35*5c4a5fe1SAndy Fiddaman * source. A copy of the CDDL is also available via the Internet at 36*5c4a5fe1SAndy Fiddaman * http://www.illumos.org/license/CDDL. 37*5c4a5fe1SAndy Fiddaman * 38*5c4a5fe1SAndy Fiddaman * Copyright 2014 Pluribus Networks Inc. 39*5c4a5fe1SAndy Fiddaman */ 40*5c4a5fe1SAndy Fiddaman 41*5c4a5fe1SAndy Fiddaman #ifndef _INOUT_H_ 42*5c4a5fe1SAndy Fiddaman #define _INOUT_H_ 43*5c4a5fe1SAndy Fiddaman 44*5c4a5fe1SAndy Fiddaman #include <sys/linker_set.h> 45*5c4a5fe1SAndy Fiddaman 46*5c4a5fe1SAndy Fiddaman struct vcpu; 47*5c4a5fe1SAndy Fiddaman struct vmctx; 48*5c4a5fe1SAndy Fiddaman struct vm_exit; 49*5c4a5fe1SAndy Fiddaman #ifndef __FreeBSD__ 50*5c4a5fe1SAndy Fiddaman struct vm_inout; 51*5c4a5fe1SAndy Fiddaman #endif 52*5c4a5fe1SAndy Fiddaman 53*5c4a5fe1SAndy Fiddaman /* 54*5c4a5fe1SAndy Fiddaman * inout emulation handlers return 0 on success and -1 on failure. 55*5c4a5fe1SAndy Fiddaman */ 56*5c4a5fe1SAndy Fiddaman typedef int (*inout_func_t)(struct vmctx *ctx, int in, int port, 57*5c4a5fe1SAndy Fiddaman int bytes, uint32_t *eax, void *arg); 58*5c4a5fe1SAndy Fiddaman 59*5c4a5fe1SAndy Fiddaman struct inout_port { 60*5c4a5fe1SAndy Fiddaman const char *name; 61*5c4a5fe1SAndy Fiddaman int port; 62*5c4a5fe1SAndy Fiddaman int size; 63*5c4a5fe1SAndy Fiddaman int flags; 64*5c4a5fe1SAndy Fiddaman inout_func_t handler; 65*5c4a5fe1SAndy Fiddaman void *arg; 66*5c4a5fe1SAndy Fiddaman }; 67*5c4a5fe1SAndy Fiddaman #define IOPORT_F_IN 0x1 68*5c4a5fe1SAndy Fiddaman #define IOPORT_F_OUT 0x2 69*5c4a5fe1SAndy Fiddaman #define IOPORT_F_INOUT (IOPORT_F_IN | IOPORT_F_OUT) 70*5c4a5fe1SAndy Fiddaman 71*5c4a5fe1SAndy Fiddaman /* 72*5c4a5fe1SAndy Fiddaman * The following flags are used internally and must not be used by 73*5c4a5fe1SAndy Fiddaman * device models. 74*5c4a5fe1SAndy Fiddaman */ 75*5c4a5fe1SAndy Fiddaman #define IOPORT_F_DEFAULT 0x80000000 /* claimed by default handler */ 76*5c4a5fe1SAndy Fiddaman 77*5c4a5fe1SAndy Fiddaman #define INOUT_PORT(name, port, flags, handler) \ 78*5c4a5fe1SAndy Fiddaman static struct inout_port __CONCAT(__inout_port, __LINE__) = { \ 79*5c4a5fe1SAndy Fiddaman #name, \ 80*5c4a5fe1SAndy Fiddaman (port), \ 81*5c4a5fe1SAndy Fiddaman 1, \ 82*5c4a5fe1SAndy Fiddaman (flags), \ 83*5c4a5fe1SAndy Fiddaman (handler), \ 84*5c4a5fe1SAndy Fiddaman 0 \ 85*5c4a5fe1SAndy Fiddaman }; \ 86*5c4a5fe1SAndy Fiddaman DATA_SET(inout_port_set, __CONCAT(__inout_port, __LINE__)) 87*5c4a5fe1SAndy Fiddaman 88*5c4a5fe1SAndy Fiddaman void init_inout(void); 89*5c4a5fe1SAndy Fiddaman #ifdef __FreeBSD__ 90*5c4a5fe1SAndy Fiddaman int emulate_inout(struct vmctx *, struct vcpu *vcpu, struct vm_exit *vmexit); 91*5c4a5fe1SAndy Fiddaman #else 92*5c4a5fe1SAndy Fiddaman int emulate_inout(struct vmctx *, struct vcpu *vcpu, struct vm_inout *inout); 93*5c4a5fe1SAndy Fiddaman #endif 94*5c4a5fe1SAndy Fiddaman int register_inout(struct inout_port *iop); 95*5c4a5fe1SAndy Fiddaman int unregister_inout(struct inout_port *iop); 96*5c4a5fe1SAndy Fiddaman 97*5c4a5fe1SAndy Fiddaman #endif /* _INOUT_H_ */ 98