github/acrn-hypervisor
1
0
Fork 0
mirror of https://github.com/projectacrn/acrn-hypervisor.git synced 2025-09-07 11:50:30 +00:00
Code Issues Projects Releases Wiki Activity

dm: vpit: add PIT-related header files

Browse Source 
Add the necessary header files for vPIT.

Origin: FreeBSD
License: BSD-3-Clause
URL: https://svnweb.freebsd.org/
commit: 335030
Purpose: Adding vPIT support.
Maintained-by: External

Tracked-On: #1392
Signed-off-by: Peter Fang <peter.fang@intel.com>
Acked-by: Yin Fengwei <fengwei.yin@intel.com>
This commit is contained in:
Peter Fang
2018-09-27 13:49:40 -07:00
committed by wenlingz
parent eff2ac7a90
commit 0359bd0f99
3 changed files with 165 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

63
devicemodel/include/pit.h Normal file
View File

@@ -0,0 +1,63 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2018 Intel Corporation
* Copyright (c) 2014 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com>
* 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.
*
* $FreeBSD$
*/
#ifndef _PIT_H_
#define _PIT_H_
#include "i8253reg.h"
#include "vmmapi.h"
#define IO_TIMER1_PORT 0x40 /* 8253 Timer #1 */
#define NMISC_PORT 0x61
#define PIT_ATPIC_IRQ 0
#define PIT_IOAPIC_IRQ 2
/*
* The outputs of the three timers are connected as follows:
*
* timer 0 -> irq 0
* timer 1 -> dma chan 0 (for dram refresh)
* timer 2 -> speaker (via keyboard controller)
*
* Timer 0 is used to call hardclock.
* Timer 2 is used to generate console beeps.
*/
#define TIMER_CNTR0 (IO_TIMER1_PORT + TIMER_REG_CNTR0)
#define TIMER_CNTR1 (IO_TIMER1_PORT + TIMER_REG_CNTR1)
#define TIMER_CNTR2 (IO_TIMER1_PORT + TIMER_REG_CNTR2)
#define TIMER_MODE (IO_TIMER1_PORT + TIMER_REG_MODE)
int vpit_init(struct vmctx *ctx);
void vpit_deinit(struct vmctx *ctx);
#endif /* _PIT_H_ */