fbbd9655e5
Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann <jschauma@stevens.edu> Pull Request: https://github.com/freebsd/freebsd/pull/96
74 lines
3.1 KiB
C
74 lines
3.1 KiB
C
/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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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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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS 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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* from: @(#)tss.h 5.4 (Berkeley) 1/18/91
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* $FreeBSD$
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*/
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#ifndef _MACHINE_TSS_H_
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#define _MACHINE_TSS_H_ 1
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/*
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* Intel 386 Context Data Type
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*/
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struct i386tss {
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int tss_link; /* actually 16 bits: top 16 bits must be zero */
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int tss_esp0; /* kernel stack pointer privilege level 0 */
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int tss_ss0; /* actually 16 bits: top 16 bits must be zero */
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int tss_esp1; /* kernel stack pointer privilege level 1 */
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int tss_ss1; /* actually 16 bits: top 16 bits must be zero */
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int tss_esp2; /* kernel stack pointer privilege level 2 */
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int tss_ss2; /* actually 16 bits: top 16 bits must be zero */
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int tss_cr3; /* page table directory */
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int tss_eip; /* program counter */
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int tss_eflags; /* program status longword */
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int tss_eax;
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int tss_ecx;
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int tss_edx;
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int tss_ebx;
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int tss_esp; /* user stack pointer */
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int tss_ebp; /* user frame pointer */
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int tss_esi;
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int tss_edi;
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int tss_es; /* actually 16 bits: top 16 bits must be zero */
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int tss_cs; /* actually 16 bits: top 16 bits must be zero */
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int tss_ss; /* actually 16 bits: top 16 bits must be zero */
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int tss_ds; /* actually 16 bits: top 16 bits must be zero */
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int tss_fs; /* actually 16 bits: top 16 bits must be zero */
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int tss_gs; /* actually 16 bits: top 16 bits must be zero */
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int tss_ldt; /* actually 16 bits: top 16 bits must be zero */
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int tss_ioopt; /* options & io offset bitmap: currently zero */
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/* XXX unimplemented .. i/o permission bitmap */
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};
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#endif /* _MACHINE_TSS_H_ */
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