Provide a very basic stub for the 8042 PS/2 keyboard controller.
Reviewed by: jhb Approved by: neel (co-mentor)
This commit is contained in:
parent
53f4b0cf9b
commit
d42ea5731e
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=264916
@ -9,6 +9,7 @@ DEBUG_FLAGS= -g -O0
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MAN= bhyve.8
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MAN= bhyve.8
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SRCS= \
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SRCS= \
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atkbdc.c \
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acpi.c \
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acpi.c \
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bhyverun.c \
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bhyverun.c \
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block_if.c \
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block_if.c \
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85
usr.sbin/bhyve/atkbdc.c
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85
usr.sbin/bhyve/atkbdc.c
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@ -0,0 +1,85 @@
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/*-
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* Copyright (c) 2014 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <machine/vmm.h>
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#include <stdio.h>
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#include "inout.h"
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#include "pci_lpc.h"
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#define KBD_DATA_PORT 0x60
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#define KBD_STS_CTL_PORT 0x64
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#define KDB_SYS_FLAG 0x4
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#define KBDC_RESET 0xfe
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static int
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atkbdc_data_handler(struct vmctx *ctx, int vcpu, int in, int port, int bytes,
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uint32_t *eax, void *arg)
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{
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if (bytes != 1)
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return (INOUT_ERROR);
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*eax = 0;
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return (INOUT_OK);
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}
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static int
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atkbdc_sts_ctl_handler(struct vmctx *ctx, int vcpu, int in, int port,
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int bytes, uint32_t *eax, void *arg)
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{
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int retval;
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if (bytes != 1)
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return (INOUT_ERROR);
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retval = INOUT_OK;
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if (in) {
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*eax = KDB_SYS_FLAG; /* system passed POST */
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} else {
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switch (*eax) {
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case KBDC_RESET: /* Pulse "reset" line. */
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retval = INOUT_RESET;
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break;
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}
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}
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return (retval);
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}
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INOUT_PORT(atkdbc, KBD_DATA_PORT, IOPORT_F_INOUT, atkbdc_data_handler);
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SYSRES_IO(KBD_DATA_PORT, 1);
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INOUT_PORT(atkbdc, KBD_STS_CTL_PORT, IOPORT_F_INOUT,
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atkbdc_sts_ctl_handler);
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SYSRES_IO(KBD_STS_CTL_PORT, 1);
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@ -281,10 +281,6 @@ vmexit_inout(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu)
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if (vme->u.inout.string || vme->u.inout.rep)
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if (vme->u.inout.string || vme->u.inout.rep)
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return (VMEXIT_ABORT);
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return (VMEXIT_ABORT);
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/* Special case of guest reset */
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if (out && port == 0x64 && (uint8_t)eax == 0xFE)
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return (vmexit_catch_reset());
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/* Extra-special case of host notifications */
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/* Extra-special case of host notifications */
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if (out && port == GUEST_NIO_PORT)
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if (out && port == GUEST_NIO_PORT)
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return (vmexit_handle_notify(ctx, vme, pvcpu, eax));
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return (vmexit_handle_notify(ctx, vme, pvcpu, eax));
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