/* $NetBSD: tss.h,v 1.8 2018/07/07 21:35:16 kamil Exp $ */ /* * Copyright (c) 2001 Wasabi Systems, Inc. * All rights reserved. * * Written by Frank van der Linden for Wasabi Systems, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the NetBSD Project by * Wasabi Systems, Inc. * 4. The name of Wasabi Systems, Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _AMD64_TSS_H_ #define _AMD64_TSS_H_ #ifdef __x86_64__ /* * TSS structure. Since TSS hw switching is not supported in long * mode, this is mainly there for the I/O permission map in * normal processes. */ struct x86_64_tss { uint32_t tss_reserved1; uint64_t tss_rsp0; uint64_t tss_rsp1; uint64_t tss_rsp2; uint32_t tss_reserved2; uint32_t tss_reserved3; uint64_t tss_ist[7]; uint32_t tss_reserved4; uint32_t tss_reserved5; uint32_t tss_iobase; } __packed; /* * I/O bitmap offset beyond TSS's segment limit means no bitmaps. * (i.e. any I/O attempt generates an exception.) */ #define IOMAP_INVALOFF 0xffffu /* * If we have an I/O bitmap, there is only one valid offset. */ #define IOMAP_VALIDOFF sizeof(struct x86_64_tss) #else /* __x86_64__ */ #include <i386/tss.h> #endif /* __x86_64__ */ #endif /* _AMD64_TSS_H_ */ |