eduOS/arch/x86/include/asm/tss.h
2013-11-27 22:49:30 +01:00

72 lines
2.3 KiB
C

/*
* Copyright (c) 2010, Stefan Lankes, RWTH Aachen University
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE REGENTS OR CONTRIBUTORS 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.
*/
/**
* @author Stefan Lankes
* @file arch/x86/include/asm/tss.h
* @brief Task state segment structure definition
*/
#ifndef __ARCH_TSS_H__
#define __ARCH_TSS_H__
#include <eduos/stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
/** @brief The tast state segment structure
*/
typedef struct {
uint16_t backlink, __blh;
uint32_t esp0;
uint16_t ss0, __ss0h;
uint32_t esp1;
uint16_t ss1, __ss1h;
uint32_t esp2;
uint16_t ss2, __ss2h;
uint32_t cr3;
uint32_t eip;
uint32_t eflags;
uint32_t eax, ecx, edx, ebx;
uint32_t esp, ebp, esi, edi;
uint16_t es, __esh;
uint16_t cs, __csh;
uint16_t ss, __ssh;
uint16_t ds, __dsh;
uint16_t fs, __fsh;
uint16_t gs, __gsh;
uint16_t ldt, __ldth;
uint16_t trace, bitmap;
} __attribute__ ((packed)) tss_t;
#ifdef __cplusplus
}
#endif
#endif