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75 lines
2.5 KiB
C
75 lines
2.5 KiB
C
/* $NetBSD: tss.h,v 1.5 2008/10/26 00:08:15 mrg Exp $ */
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/*
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* Copyright (c) 2001 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Frank van der Linden for Wasabi Systems, Inc.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _AMD64_TSS_H_
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#define _AMD64_TSS_H_
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#ifdef __x86_64__
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/*
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* TSS structure. Since TSS hw switching is not supported in long
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* mode, this is mainly there for the I/O permission map in
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* normal processes.
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*/
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struct x86_64_tss {
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uint32_t tss_reserved1;
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uint64_t tss_rsp0;
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uint64_t tss_rsp1;
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uint64_t tss_rsp3;
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uint32_t tss_reserved2;
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uint32_t tss_reserved3;
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uint64_t tss_ist[7];
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uint32_t tss_reserved4;
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uint32_t tss_reserved5;
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uint32_t tss_iobase;
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} __packed;
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/*
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* I/O bitmap offset beyond TSS's segment limit means no bitmaps.
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* (i.e. any I/O attempt generates an exception.)
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*/
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#define IOMAP_INVALOFF 0xffff
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#else /* __x86_64__ */
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#include <i386/tss.h>
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#endif /* __x86_64__ */
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#endif /* _AMD64_TSS_H_ */
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