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#include <sys/cdefs.h> 30221828Sgrehan__FBSDID("$FreeBSD$"); 31221828Sgrehan 32221828Sgrehan#include <sys/param.h> 33221828Sgrehan 34221828Sgrehan#include <stdio.h> 35221828Sgrehan#include <string.h> 36221828Sgrehan#include <assert.h> 37221828Sgrehan 38221828Sgrehan#include "inout.h" 39221828Sgrehan 40221828Sgrehan#define IO_ICU1 0x20 41221828Sgrehan#define IO_ICU2 0xA0 42221828Sgrehan#define ICU_IMR_OFFSET 1 43221828Sgrehan 44221828Sgrehanstatic int 45221828Sgrehanatpic_handler(struct vmctx *ctx, int vcpu, int in, int port, int bytes, 46221828Sgrehan uint32_t *eax, void *arg) 47221828Sgrehan{ 48221828Sgrehan if (bytes != 1) 49221828Sgrehan return (-1); 50221828Sgrehan 51252336Sgrehan if (in) { 52252336Sgrehan if (port & ICU_IMR_OFFSET) { 53252336Sgrehan /* all interrupts masked */ 54252336Sgrehan *eax = 0xff; 55252336Sgrehan } else { 56252336Sgrehan *eax = 0x00; 57252336Sgrehan } 58252336Sgrehan } 59221828Sgrehan 60221828Sgrehan /* Pretend all writes to the 8259 are alright */ 61221828Sgrehan return (0); 62221828Sgrehan} 63221828Sgrehan 64221828SgrehanINOUT_PORT(atpic, IO_ICU1, IOPORT_F_INOUT, atpic_handler); 65221828SgrehanINOUT_PORT(atpic, IO_ICU1 + ICU_IMR_OFFSET, IOPORT_F_INOUT, atpic_handler); 66221828SgrehanINOUT_PORT(atpic, IO_ICU2, IOPORT_F_INOUT, atpic_handler); 67221828SgrehanINOUT_PORT(atpic, IO_ICU2 + ICU_IMR_OFFSET, IOPORT_F_INOUT, atpic_handler); 68