2 * Copyright (c) 2014 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/types.h>
32 #include <machine/vmm.h>
43 #define KBD_DATA_PORT 0x60
45 #define KBD_STS_CTL_PORT 0x64
46 #define KBD_SYS_FLAG 0x4
48 #define KBDC_RESET 0xfe
51 atkbdc_data_handler(struct vmctx *ctx, int vcpu, int in, int port, int bytes,
52 uint32_t *eax, void *arg)
63 atkbdc_sts_ctl_handler(struct vmctx *ctx, int vcpu, int in, int port,
64 int bytes, uint32_t *eax, void *arg)
73 *eax = KBD_SYS_FLAG; /* system passed POST */
76 case KBDC_RESET: /* Pulse "reset" line. */
77 error = vm_suspend(ctx, VM_SUSPEND_RESET);
78 assert(error == 0 || errno == EALREADY);
86 INOUT_PORT(atkdbc, KBD_DATA_PORT, IOPORT_F_INOUT, atkbdc_data_handler);
87 SYSRES_IO(KBD_DATA_PORT, 1);
88 INOUT_PORT(atkbdc, KBD_STS_CTL_PORT, IOPORT_F_INOUT,
89 atkbdc_sts_ctl_handler);
90 SYSRES_IO(KBD_STS_CTL_PORT, 1);