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https://github.com/projectacrn/acrn-hypervisor.git
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e4429d632b
This patch is to change the vUART resource occupied by S5 function between Service VM and guest VM to avoid the standard UART port conflict when legacy UART passthrough to guest VM. Tracked-On: #8622 Signed-off-by: YuanXin-Intel <xin.yuan@intel.com> Reviewed-by: Junjie Mao <junjie.mao@intel.com> Reviewed-by: Jian Jun Chen <jian.jun.chen@intel.com>
48 lines
2.0 KiB
C
48 lines
2.0 KiB
C
/*-
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* Copyright (c) 2013 Neel Natu <neel@freebsd.org>
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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 NETAPP, INC ``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 NETAPP, INC 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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* $FreeBSD$
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*/
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#ifndef _UART_CORE_H_
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#define _UART_CORE_H_
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#define UART_IO_BAR_SIZE 8
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struct uart_vdev;
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typedef void (*uart_intr_func_t)(void *arg);
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int uart_legacy_alloc(int unit, int *ioaddr, int *irq);
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int uart_legacy_reinit_res(int which, int baseaddr, int irq);
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void uart_legacy_dealloc(int which);
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uint8_t uart_read(struct uart_vdev *uart, int offset);
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void uart_write(struct uart_vdev *uart, int offset, uint8_t value);
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struct uart_vdev*
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uart_set_backend(uart_intr_func_t intr_assert, uart_intr_func_t intr_deassert,
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void *arg, const char *opts);
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void uart_release_backend(struct uart_vdev *uart, const char *opts);
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#endif
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