be00d9ee47
during Linux boot. Submitted by: tycho nightingale at pluribusnetworks com Reviewed by: neel
68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
/*-
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
|
|
#include "inout.h"
|
|
|
|
#define IO_ICU1 0x20
|
|
#define IO_ICU2 0xA0
|
|
#define ICU_IMR_OFFSET 1
|
|
|
|
static int
|
|
atpic_handler(struct vmctx *ctx, int vcpu, int in, int port, int bytes,
|
|
uint32_t *eax, void *arg)
|
|
{
|
|
if (bytes != 1)
|
|
return (-1);
|
|
|
|
if (in) {
|
|
if (port & ICU_IMR_OFFSET) {
|
|
/* all interrupts masked */
|
|
*eax = 0xff;
|
|
} else {
|
|
*eax = 0x00;
|
|
}
|
|
}
|
|
|
|
/* Pretend all writes to the 8259 are alright */
|
|
return (0);
|
|
}
|
|
|
|
INOUT_PORT(atpic, IO_ICU1, IOPORT_F_INOUT, atpic_handler);
|
|
INOUT_PORT(atpic, IO_ICU1 + ICU_IMR_OFFSET, IOPORT_F_INOUT, atpic_handler);
|
|
INOUT_PORT(atpic, IO_ICU2, IOPORT_F_INOUT, atpic_handler);
|
|
INOUT_PORT(atpic, IO_ICU2 + ICU_IMR_OFFSET, IOPORT_F_INOUT, atpic_handler);
|