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kernel/arch/config.h
2017-11-02 14:51:41 +00:00

23 lines
753 B
C

#ifndef KERNELMQ_INCLUDED_CONFIG
#define KERNELMQ_INCLUDED_CONFIG 1
#define IDT_SIZE 256 // maximal size
#define GDT_NULL_INDEX 0
#define GDT_KERNEL_CS_INDEX 1
#define GDT_KERNEL_DS_INDEX 2
#define GDT_USER_CS_INDEX 3
#define GDT_USER_DS_INDEX 4
#define GDT_SIZE 5
#define GDT_DESCRIPTOR_SIZE 8 // bytes
#define GDT_SEGMENT_SELECTOR(n) ((n) * GDT_DESCRIPTOR_SIZE)
#define GDT_NULL_SELECTOR GDT_SEGMENT_SELECTOR(GDT_NULL_INDEX)
#define GDT_KERNEL_CS_SELECTOR GDT_SEGMENT_SELECTOR(GDT_KERNEL_CS_INDEX)
#define GDT_KERNEL_DS_SELECTOR GDT_SEGMENT_SELECTOR(GDT_KERNEL_DS_INDEX)
#define GDT_USER_CS_SELECTOR GDT_SEGMENT_SELECTOR(GDT_USER_CS_INDEX)
#define GDT_USER_DS_SELECTOR GDT_SEGMENT_SELECTOR(GDT_USER_DS_INDEX)
#endif