6e0bbaf55e
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@123 315a16e6-25f9-4109-90ae-ca3045a26c18
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/*
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* Copyright 2010 Stefan Lankes, Chair for Operating Systems,
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* RWTH Aachen University
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This file is part of MetalSVM.
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*/
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#ifndef __ARCH_IDT_H__
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#define __ARCH_IDT_H__
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#include <metalsvm/stddef.h>
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#define IDT_FLAG_PRESENT 0x80
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#define IDT_FLAG_RING0 0x00
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#define IDT_FLAG_RING1 0x20
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#define IDT_FLAG_RING2 0x40
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#define IDT_FLAG_RING3 0x60
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#define IDT_FLAG_16BIT 0x00
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#define IDT_FLAG_32BIT 0x08
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#define IDT_FLAG_INTTRAP 0x06
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#define IDT_FLAG_TRAPGATE 0x07
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#define IDT_FLAG_TASKGATE 0x05
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#define KERNEL_CODE_SELECTOR 0x08
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#define KERNEL_DATA_SELECTOR 0x10
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#ifdef __cplusplus
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extern "C" {
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#endif
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void idt_install(void);
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void idt_set_gate(unsigned char num, unsigned long base, unsigned short sel,
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unsigned char flags);
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#ifdef __cplusplus
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}
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#endif
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#endif
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