d9a3efb834
This commit adds minimal support of Xen hypervisor console via UART-like driver. Implementation allows to use poll_in/poll_out char interface for uart_console.c driver directly to HV console instead of using Xen virtual PL011 UART. Future implementation will support interrupt driven interface on Xen event channels, currently it is under development. Also this commit introduces early console_io Xen interface, which allows to receive printk/stdout messages quickly after start, but requires Xen, built with CONFIG_DEBUG option. Signed-off-by: Dmytro Firsov <dmytro_firsov@epam.com>
18 lines
346 B
C
18 lines
346 B
C
/*
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* Copyright (c) 2021 EPAM Systems
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __XEN_HVM_H__
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#define __XEN_HVM_H__
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#include <xen/public/hvm/hvm_op.h>
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#include <xen/public/hvm/params.h>
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#include <kernel.h>
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int hvm_set_parameter(int idx, uint64_t value);
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int hvm_get_parameter(int idx, uint64_t *value);
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#endif /* __XEN_HVM_H__ */
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