37 lines
759 B
C++
37 lines
759 B
C++
/*
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* \brief x86 utility functions
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* \author Reto Buerki
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* \date 2015-02-27
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*/
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/*
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* Copyright (C) 2015 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _MTC_UTIL_H_
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#define _MTC_UTIL_H_
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#include <base/stdint.h>
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extern int _mt_begin;
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namespace Genode
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{
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/**
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* Return virtual mtc address of the given label for the specified
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* virtual mode transition base.
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*
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* \param virt_base virtual base of the mode transition pages
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*/
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static addr_t _virt_mtc_addr(addr_t const virt_base, addr_t const label)
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{
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addr_t const phys_base = (addr_t)&_mt_begin;
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return virt_base + (label - phys_base);
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}
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}
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#endif /* _MTC_UTIL_H_ */
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