metalsvm/arch/x86/include/asm/tss.h

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/*
* Copyright 2010 Stefan Lankes, Chair for Operating Systems,
* RWTH Aachen University
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of MetalSVM.
*/
/**
* @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 <metalsvm/stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
/** @brief The tast state segment structure
*/
typedef struct {
#ifdef CONFIG_X86_32
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;
#endif
#ifdef CONFIG_X86_64
uint16_t res0, res1; // reserved entries
uint64_t rsp0;
uint64_t rsp1;
uint64_t rsp2;
uint32_t res2, res3; // reserved entries
uint64_t ist_rsp1;
uint64_t ist_rsp2;
uint64_t ist_rsp3;
uint64_t ist_rsp4;
uint64_t ist_rsp5;
uint64_t ist_rsp6;
uint64_t ist_rsp7;
uint32_t res4, res5; // reserved entries
uint16_t res6, bitmap;
#endif
} __attribute__ ((packed)) tss_t;
#ifdef __cplusplus
}
#endif
#endif