78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
/*********************************************************
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* Copyright (C) 2006-2014 VMware, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2 and no later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*********************************************************/
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/*
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* x86sel.h --
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*
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* Definitions and macros for dealing with x86 segment selectors.
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*/
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#ifndef _X86SEL_H_
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#define _X86SEL_H_
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#define INCLUDE_ALLOW_USERLEVEL
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#define INCLUDE_ALLOW_MODULE
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#define INCLUDE_ALLOW_VMMON
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#define INCLUDE_ALLOW_VMK_MODULE
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#define INCLUDE_ALLOW_VMKERNEL
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#define INCLUDE_ALLOW_DISTRIBUTE
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#define INCLUDE_ALLOW_VMCORE
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#include "includeCheck.h"
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#if defined __cplusplus
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extern "C" {
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#endif
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#define SELECTOR_GDT 0
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#define SELECTOR_LDT 1
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#define SELECTOR_RPL_SHIFT 0
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#define SELECTOR_RPL_MASK 0x03u
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#define SELECTOR_TI_SHIFT 2
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#define SELECTOR_TI_MASK 0x4
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#define SELECTOR_INDEX_SHIFT 3
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#define SELECTOR_INDEX_MASK 0xfff8
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#define SELECTOR_RPL(_sel) (((Selector)(_sel)) & SELECTOR_RPL_MASK)
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#define SELECTOR_TABLE(_sel) ((((Selector)(_sel)) & SELECTOR_TI_MASK) >> SELECTOR_TI_SHIFT)
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#define SELECTOR_INDEX(_sel) (((Selector)(_sel)) >> SELECTOR_INDEX_SHIFT)
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#define SELECTOR_CLEAR_RPL(_sel) ((Selector)(((Selector)(_sel)) & ~SELECTOR_RPL_MASK))
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#define NULL_SELECTOR(_sel) (!SELECTOR_CLEAR_RPL(_sel))
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#define MAKE_SELECTOR_UNCHECKED(_index, _ti, _RPL) \
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((Selector)(((_index) << SELECTOR_INDEX_SHIFT) | \
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((_ti ) << SELECTOR_TI_SHIFT) | \
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((_RPL ) << SELECTOR_RPL_SHIFT)))
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static INLINE Selector
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MAKE_SELECTOR(unsigned index, unsigned ti, unsigned rpl)
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{
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ASSERT(index <= (SELECTOR_INDEX_MASK >> SELECTOR_INDEX_SHIFT) &&
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ti <= (SELECTOR_TI_MASK >> SELECTOR_TI_SHIFT) &&
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rpl <= (SELECTOR_RPL_MASK >> SELECTOR_RPL_SHIFT));
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return MAKE_SELECTOR_UNCHECKED(index, ti, rpl);
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}
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#if defined __cplusplus
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} // extern "C"
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#endif
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#endif /* !defined _X86SEL_H_ */
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