41 lines
977 B
C++
41 lines
977 B
C++
/*
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* \brief UTCB definition
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* \author Norman Feske
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* \date 2016-03-08
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*/
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/*
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* Copyright (C) 2016-2017 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 Affero General Public License version 3.
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*/
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#ifndef _INCLUDE__BASE__INTERNAL__NATIVE_UTCB_H_
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#define _INCLUDE__BASE__INTERNAL__NATIVE_UTCB_H_
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#include <base/stdint.h>
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namespace Genode { struct Native_utcb; }
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struct Genode::Native_utcb
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{
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/**
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* On seL4, the UTCB is called IPC buffer. We use one page
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* for each IPC buffer.
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*/
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enum { IPC_BUFFER_SIZE = 4096, ELEMENTS = IPC_BUFFER_SIZE/sizeof(addr_t) };
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addr_t _raw[ELEMENTS];
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Native_utcb() { };
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addr_t ep_sel() const { return _raw[ELEMENTS - 1]; }
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addr_t lock_sel() const { return _raw[ELEMENTS - 2]; }
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void ep_sel (addr_t sel) { _raw[ELEMENTS - 1] = sel; }
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void lock_sel(addr_t sel) { _raw[ELEMENTS - 2] = sel; }
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};
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#endif /* _INCLUDE__BASE__INTERNAL__NATIVE_UTCB_H_ */
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