mango/arch/x86_64/cpu_ctrl.S

	.global ml_halt_cpu
	.type ml_halt_cpu, @function

ml_halt_cpu:
1:	cli
	hlt
	jmp 1b


	.global ml_this_cpu
	.type ml_this_cpu, @function

ml_this_cpu:
	movq %gs:0, %rax
	ret


	.global rdmsr
	.type rdmsr, @function

rdmsr:
	mov %rdi, %rcx
	rdmsr
	shl $32, %rdx
	orq %rax, %rdx
	ret

	.global wrmsr
	.type wrmsr, @function

wrmsr:
	mov %rdi, %rcx
	mov %rsi, %rax
	mov %rsi, %rdx
	shr $32, %rdx

	wrmsr

	ret