api/bits/x86_64/msr.h


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#pragma once

#include <stdint.h>

#define MSR_INDEX_EFER 0xc0000080
#define MSR_INDEX_STAR 0xc0000081
#define MSR_INDEX_LSTAR 0xc0000082
#define MSR_INDEX_SFMASK 0xc0000084
#define MSR_INDEX_KERNELGSBASE 0xc0000102
#define MSR_EFER_SCE 1

union msr_star
{
	struct
	{
		uint32_t target_eip;
		uint16_t syscall_segment_base;
		uint16_t sysret_segment_base;
	}
	fields;
	uint64_t value;
};

union msr_lstar
{
	uint64_t target_rip;
	uint64_t value;
};

union msr_sfmask
{
	struct
	{
		uint32_t mask;
		uint32_t reserved;
	};
	uint64_t value;
};