1221828Sgrehan/*- 2221828Sgrehan * Copyright (c) 2011 NetApp, Inc. 3221828Sgrehan * All rights reserved. 4221828Sgrehan * 5221828Sgrehan * Redistribution and use in source and binary forms, with or without 6221828Sgrehan * modification, are permitted provided that the following conditions 7221828Sgrehan * are met: 8221828Sgrehan * 1. Redistributions of source code must retain the above copyright 9221828Sgrehan * notice, this list of conditions and the following disclaimer. 10221828Sgrehan * 2. Redistributions in binary form must reproduce the above copyright 11221828Sgrehan * notice, this list of conditions and the following disclaimer in the 12221828Sgrehan * documentation and/or other materials provided with the distribution. 13221828Sgrehan * 14221828Sgrehan * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 15221828Sgrehan * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16221828Sgrehan * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17221828Sgrehan * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 18221828Sgrehan * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19221828Sgrehan * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20221828Sgrehan * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21221828Sgrehan * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22221828Sgrehan * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23221828Sgrehan * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24221828Sgrehan * SUCH DAMAGE. 25221828Sgrehan * 26221828Sgrehan * $FreeBSD$ 27221828Sgrehan */ 28221828Sgrehan 29221828Sgrehan#ifndef _INOUT_H_ 30221828Sgrehan#define _INOUT_H_ 31221828Sgrehan 32221828Sgrehan#include <sys/linker_set.h> 33221828Sgrehan 34221828Sgrehanstruct vmctx; 35268976Sjhbstruct vm_exit; 36221828Sgrehan 37270159Sgrehan/* 38270159Sgrehan * inout emulation handlers return 0 on success and -1 on failure. 39270159Sgrehan */ 40221828Sgrehantypedef int (*inout_func_t)(struct vmctx *ctx, int vcpu, int in, int port, 41221828Sgrehan int bytes, uint32_t *eax, void *arg); 42221828Sgrehan 43221828Sgrehanstruct inout_port { 44221828Sgrehan const char *name; 45221828Sgrehan int port; 46249321Sneel int size; 47221828Sgrehan int flags; 48221828Sgrehan inout_func_t handler; 49221828Sgrehan void *arg; 50221828Sgrehan}; 51221828Sgrehan#define IOPORT_F_IN 0x1 52221828Sgrehan#define IOPORT_F_OUT 0x2 53257396Sneel#define IOPORT_F_INOUT (IOPORT_F_IN | IOPORT_F_OUT) 54221828Sgrehan 55257396Sneel/* 56257396Sneel * The following flags are used internally and must not be used by 57257396Sneel * device models. 58257396Sneel */ 59257396Sneel#define IOPORT_F_DEFAULT 0x80000000 /* claimed by default handler */ 60257396Sneel 61221828Sgrehan#define INOUT_PORT(name, port, flags, handler) \ 62221828Sgrehan static struct inout_port __CONCAT(__inout_port, __LINE__) = { \ 63221828Sgrehan #name, \ 64221828Sgrehan (port), \ 65249321Sneel 1, \ 66221828Sgrehan (flags), \ 67221942Sjhb (handler), \ 68221942Sjhb 0 \ 69221828Sgrehan }; \ 70221828Sgrehan DATA_SET(inout_port_set, __CONCAT(__inout_port, __LINE__)) 71221828Sgrehan 72221828Sgrehanvoid init_inout(void); 73268976Sjhbint emulate_inout(struct vmctx *, int vcpu, struct vm_exit *vmexit, 74268976Sjhb int strict); 75221828Sgrehanint register_inout(struct inout_port *iop); 76249321Sneelint unregister_inout(struct inout_port *iop); 77242192Sneelvoid init_bvmcons(void); 78242192Sneel 79221828Sgrehan#endif /* _INOUT_H_ */ 80