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#ifndef JOVE_ARCH_X86_64_TABLES_H
#define JOVE_ARCH_X86_64_TABLES_H 1
#include <stdint.h>
#define CD_SEGMENT_TYPE_ACCESSED 1
#define CD_SEGMENT_TYPE_WRITEABLE 2
#define CD_SEGMENT_TYPE_DATA_EXPAND_DOWN 4
#define CD_SEGMENT_TYPE_CODE_CONFORMING 4
#define CD_SEGMENT_TYPE_CODE 8
#define S_SEGMENT_TYPE_LDT 2
#define S_SEGMENT_TYPE_TSS_AVAIL 9
#define S_SEGMENT_TYPE_TSS_BUSY 11
#define S_SEGMENT_TYPE_CALLGATE 12
#define S_SEGMENT_TYPE_INT_GATE 14
#define S_SEGMENT_TYPE_TRAP_GATE 15
struct SegmentDescriptor
{
uint16_t limit_0_15; /* Segment limit. */
uint16_t base_0_15; /* Segment base. */
uint8_t base_16_23;
uint8_t type : 4; /* Segment type. */
uint8_t s : 1; /* Descriptor type (0 = system, 1 = code/data)*/
uint8_t dpl : 2; /* Descriptor privilege level. */
uint8_t p : 1; ; /* Present. */
uint8_t limit_16_19 : 4;
uint8_t avl : 1; /* Available for use by system software. */
uint8_t l : 1; /* 64-bit segment (Ext). */
uint8_t d_b : 1; /* Default operation size (0 = 16-bit, 1 = 32-bit)*/
uint8_t g : 1; /* Granularity. */
uint8_t base_24_31;
}__attribute__((packed));
struct InterruptTrapGate
{
uint16_t base_0_15;
uint16_t segment_selector;
uint8_t ist : 3;
uint8_t zero_0 : 5;
uint8_t type : 4;
uint8_t zero_1 : 1;
uint8_t dpl : 2;
uint8_t p : 1;
uint16_t base_16_31;
uint32_t base_32_63;
uint32_t resv;
}__attribute__((packed));
struct XDTR /* Generic table descriptor struct */
{
uint16_t length;
uint64_t address;
}__attribute__((packed));
void x86_64_load_gdt(void);
void x86_64_load_idt(void);
#endif
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