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29 lines
526 B
29 lines
526 B
#ifndef __SEGMENT_DESCRIPTOR_H
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#define __SEGMENT_DESCRIPTOR_H
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struct segment_descriptor {
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u16 limit_low;
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u16 base_low;
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u8 base_mid;
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u8 type : 4;
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u8 system : 1;
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u8 dpl : 2;
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u8 present : 1;
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u8 limit_high : 4;
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u8 avl : 1;
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u8 long_mode : 1;
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u8 default_op : 1;
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u8 granularity : 1;
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u8 base_high;
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} __attribute__((packed));
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#ifdef CONFIG_X86_64
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/* LDT or TSS descriptor in the GDT. 16 bytes. */
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struct segment_descriptor_64 {
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struct segment_descriptor s;
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u32 base_higher;
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u32 pad_zero;
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};
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#endif
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#endif
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