d2a1be1c4e
Renamed {32,64}/int.cpp to {32,64}/descriptors.cpp, which now contain
functions for GDT and TSS setup that were previously in arch_cpu.cpp,
as well as the IDT setup code. These get called from the init functions
in arch_cpu.cpp, rather than having a bunch of ifdef'd chunks of code
for 32/64.
67 lines
1.2 KiB
C
67 lines
1.2 KiB
C
/*
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* Copyright 2002-2006, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
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* Distributed under the terms of the MIT License.
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*
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* Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
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* Distributed under the terms of the NewOS License.
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*/
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#ifndef _KERNEL_ARCH_x86_DESCRIPTORS_H
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#define _KERNEL_ARCH_x86_DESCRIPTORS_H
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#ifndef _ASSEMBLER
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#include <SupportDefs.h>
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struct kernel_args;
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enum descriptor_privilege_levels {
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DPL_KERNEL = 0,
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DPL_USER = 3,
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};
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enum descriptor_types {
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// segment types
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DT_CODE_EXECUTE_ONLY = 0x8,
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DT_CODE_ACCESSED = 0x9,
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DT_CODE_READABLE = 0xa,
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DT_CODE_CONFORM = 0xc,
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DT_DATA_READ_ONLY = 0x0,
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DT_DATA_ACCESSED = 0x1,
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DT_DATA_WRITEABLE = 0x2,
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DT_DATA_EXPANSION_DOWN = 0x4,
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DT_TSS = 9,
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/* non busy, 32 bit */
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// descriptor types
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DT_SYSTEM_SEGMENT = 0,
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DT_CODE_DATA_SEGMENT = 1,
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};
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enum gate_types {
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GATE_INTERRUPT = 14,
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GATE_TRAP = 15,
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};
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void x86_descriptors_init(kernel_args* args);
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void x86_descriptors_init_percpu(kernel_args* args, int cpu);
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status_t x86_descriptors_init_post_vm(kernel_args* args);
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#endif // !_ASSEMBLER
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#ifdef __x86_64__
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# include <arch/x86/64/descriptors.h>
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#else
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# include <arch/x86/32/descriptors.h>
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#endif
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#endif /* _KERNEL_ARCH_x86_DESCRIPTORS_H */
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