metaverse-dev/include/kernel/arch/x86_64/interrupt.h

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#ifndef X86_64_INTERRUPT_H
#define X86_64_INTERRUPT_H 1
#include <types.h>
#include <utils.h>
/**
* @name gate_descriptor_t
* @addindex x86_64
*
*
*/
typedef struct __gate_descriptor_t
{
u16 offset_01;
u16 segment_selector; // for code segment
u16 flags;
u16 offset_23;
u32 offset_4567;
u32 reserved;
} DISALIGNED gate_descriptor_t;
/**
* @name INTERRUPT_DESCRIPTOR_FLAG_IST
* @addindex x86_64
*
* `gate_descriptor_t``flags`
*
* `ssp`tss描述符在任务段中的的索引
*/
#define INTERRUPT_DESCRIPTOR_FLAG_IST(ssp) (ssp)
// 在第15位上有一个表示代码段是否存在的标志位代码段总是存在故直接设置为1
#define INTERRUPT_DESCRIPTOR_FLAG_TYPE_INTERRUPT (0x8e << 8)
#define INTERRUPT_DESCRIPTOR_FLAG_TYPE_TRAP (0x8f << 8)
/**
* @name idt
*
*
*/
extern gate_descriptor_t idt[256];
#endif